Why you SHOULD rebuild your own manual transmission in your project car!

[@Sk8orDieWorldWide]

"go in there, take it apart, learn about it, and be proud when you put it back together." - This mentality needs to be taught to all generations so we can prosper 🙏

[@308dad8]

All our grandpa’s were familiar

[@TheFatcake1234]

Im an firmware engineer and work with robotics heavily however, even though i do more electrical work, the engineer in me looks at a system outside my domain and makes me feel the need explore. Thanks for encouragment. I plan on rebuilding my first manual trans next month :)

[@308dad8]

Funny I was a hardware support engineer in mainframe environments. Lots of time changing HBots in libraries. The inner workings of a transmission are like magic. Yes when you shift you align a gear to contact 1 of the drive gears but how that all goes together is a mystery. I need to learn it but I would be lying if I said it ain’t intimidating.

[@danryan3146]

Great advice...I have torn down engines and rebuilt them but have not yet dared to disassemble a transmission.

[@dennisden7654]

P

[@SavedTacosForU]

Exact words my brother said to me

[@mikethemike6406]

Same here, engines no problem but gear boxes have always been this mysterious tabu, haha... I am going to do it this week.

[@triples4good]

Hey Nabil, great video, probably one of your best. I few years ago, I rebuilt an engine/ transmission on my Honda CB750. What you say is true. Just dive in and figure it out. If you break something, just fix it. Not a big deal. It really takes the mystery out of it.

[@orm865]

Every time you said “so you won’t be afraid anymore” made me think of the movie home alone

[@autumnjeserich2689]

its not the fear of taking the gearbox apart holding me back, its the difficulty finding a manual transmission strong enough for my application that doesn't suck. T56 aint cheap

[@VincentMMoore0]

Great video. One cannot and need not be afraid of getting into the unknown. AND: if you break something, it CAN be fixed! If a human designed it and put it together - a human can take it apart, understand it, and put it back together again.

[@FruitTreeForest]

I want too! Thanks for the knowledge and encouragement!!

[@elzonthasim888]

As a previous hh-60g T701C mechanic. U just made me want to tear my car apart 😂 did not realize how much we have in common

[@99fxr68]

I bought a W56 trans and R1FA t case from a junkyard and just dug in. There’s so many step by step tutorials AND the fact I stayed in Holiday Inn gave me the confidence I needed to do the job. 😂😂 seriously though. Way easier than we’re led to believe

[@jakelee1001]

Great explanation on how the syncro works. Had to watch it a couple times to get it, but it makes good sense now.

[@scadieee]

Going to rebuild my 350z 6 speed after watching this vid. Thanks for the explanation !

[@cesarzelaya5044]

Thanks for the class ,very inspiring

[@livemeyer]

You have incentivized me to rebuild my transmission. I think the big fear is in missing a step, not putting something back together correctly and all that time in removal, rebuild and reinstallation, when you finally get it back in the vehicle and it doesn't work correctly, or at all. For me, I have an '85 Nissan 720 and I not only want to do the rebuild but I want to customize it with a slightly taller first gear and a slightly smaller overdrive gear. Most difficult is discovery - what gear ratios are currently in there and how and where to find other gears and parts that will adapt or install properly. I do think, since my truck is running and driving fine, I might locate a junkyard transmission and attempt the rebuild on that one. That way, I can fall back to my current good transmission if I mess up.

[@benjaminpopo4836]

Well said great ,that's how we all have to start somewhere , confident in yourself

[@scubbarookie]

Thank you for the encouragement and advice. I had to subscribe after watching this! 👍

[@cparks872]

Great video, thanks for the encouragement. I've got a NP435 that needs rebuilt for my '63 F100 unibody, and I've been a bit on the fence about my ability to do it. I think I will be giving it a go here soon!

[@TheCAPTAINman128]

Thanks for this explanation. I need to open mine up and check it out. It is an intimidating project but this helps

[@ssalamri7302]

this man knows has stuff 👍

[@Anglgrinder-j3y]

Thank you for taking the time to explain, very helpful & yes confidence building.

[@federicomarchetta1609]

Very encouraging, I will take the leap. thank you

[@elwindewitte]

You're really giving me the confidence to consider rebuilding my trans. The one thing I'm concerned about is availability of parts. Can't really seem to find rebuild kits here in Europe, although I haven't looked too much yet. Incredibly fascinating engineering though!

[@ODDBALLGALLERYKeithWilliams]

Thanks for the video. You have simplified some of the mystery. I'm going to tear into my NV4500 now.

[@dathat555]

Thank you for the detailed video. I've rebuilt engines but never cracked open a transmission. I am contemplating rebuilding the manual trans in my 1989 RX-7. I am the original owner an pretty much the only person who has worked on the car. I have the factory service manual that details the disassembly and reassembly and of course many YT videos for reference. The hesitation is my lack of the special tools required. I can fab some of the specialty tools, such as a long-armed puller, but others are unique and not DIY fab items. I guess I need to compare the cost of obtaining the (expensive, sourcing from Japan or Germany) tools for likely a one-time use against taking it to a trans shop. Oh well, I don't need much of an excuse to accumulate more tools.

[@stuartwilson3057]

Nabil - Great video man. You have encouraged me to dive right in and that’s exactly what I will do. It’s a used Corolla gearbox I bought to convert from my busted Automatic transmission. Btw I am in Jamaica. 👍🏾

[@benjaminpopo4836]

Confidence makes you move the world

[@Obscuremotorsports]

And so does finishing a video from time to time! Just put one up finishing that transmission build.

[@AW_DIY_garage]

Thank you. I am looking at repairing a transmission in my Datsun 510 that came out of a Datsun 280zx. You de-mystified quite a bit with this video.

[@Obscuremotorsports]

Good luck!!

[@bladimircorrales7942]

Greatly,detailad explanation thank you.

[@jameslewis197]

I have a z28 my mechanic re- did the head gasket sounds soo good but, he is going too take the box off, it doesn't get into 2nd🚫 its a great Transmission place block away, all other gears go in pretty good. He is going to do clutch , etc but this video really explains what he said, about the gearbox..& why manual is better..

[@johneric3886]

Excellent review terrific communication skills.

[@CaptainGSR]

Great video!

[@chxzniu_x6995]

THANK YOU SR GREAT TEACHER EVERYTHIN IS POSIBLE

[@valherustinger7848]

Thank you that was perfect!

[@JasonDFD3S]

Thanks for providing comfort in this project.

[@exoticveganrecipes5655]

Im diving integra those waters in these holidays with a 5 speed 😇🤝😬

[@kalef1234]

Rebuilding an automatic sounds super hard. I recently learned HOW synchromesh transmissions work, and this video disassembling and reassembling the synchro filled in some info gaps. I knew the synchros prevent gear engagement until it is synched, (many mess this up by jamming gears in with force rather than letting the light pressure and time do the job) Anyway, but I didn't know HOW it prevented the gears going into place. These are actually pretty simple once you understand what goes on when you shift.

[@J_S209]

I bought a manual car recently, it had been 30 years since I’ve owned a manual car. When I learnt to drive I was never really taught all that well. Every drive I’m learning something new, The thing with manuals is feel and timing and finesse and sympathy, manual transmissions change as you drive them and they are very alive.

[@brianblackmore1678]

Building it seems straightforward. I'd think a greater concern would be the experience to detect which parts actually need replaced.

[@Obscuremotorsports]

You'd be surprised how little experience is really needed. Anyone that can drive a manual and shift through the gears would he able to figure out which gear is acting up. If the transmission keeps popping out of a specific gear you've already done 90% of the work. You'll know what synchro, shift collar, and fork to look at. And if all the other gears are shifting correctly you'll have something to compare it too. Broken teeth are super easy to spot (cause they are gone) if a synchro is burnt up you'll be able to see a difference in color compared to the others. The shift forks are only machined in a couple places. So it that cast surface is shiny, chances are it's hitting something it isn't supposed to. The amazing think is a guy on youtube with no experience at all messaged me on youtube and figured out 95% of his issues just by digging into it. Most of our conversations were validating what he found and double checking a couple things that looked backwards compared to mine. He bought a synchro rebuild kit. Spent a couple weekends working on it and got it all back together. I haven't heard from him in like 2 months now. I'm assuming its still working or I would have heard about it.

[@kermitefrog64]

I am looking at eventually rebuilding my 1981 Mercedes 240d Getrag manual transmission 4 speed. My big hurdle is finding a rebuild kit when it comes time.

[@ButchNackley]

Great information, thank you! I've been buying Kent Moore tools for rebuilding the Getrag/NVG MG2 5spd transaxles. I've got 6 of them and really want to open one up for the experience. Your video has been very informative and really helped me to better understand the service manual. I'm not quite as intimidated now.

[@mistermr2147]

Great video mam

[@dennotush]

Good explanation my firebird grinds and pops out of the 5th gear i thinking about dropping the transmission and trying to rebuilt it myself am pretty good with tools and like to learn how stuff works.

[@obsoleteprofessor2034]

My Camry with 450k miles started popping out of 5th. What I noticed but never gave much thought to was how the shift lever in some gears would move alot when I would put power or back off the gas. I thought I had bad motor mounts. I swapped the trans when it finally wouldn't stay in 5th. I drove it in 4th for about 6 months before I found a good used replacement. What I found on my old one was that the bearings and spacers were worn. Under torque, the entire gear train moves in relation to the parallel clusters it meshes with. It moves so far that it jumps out of the little tabs that clicks the gear in place after you complete a shift, hence it pops out of gear. Changing the bearings and spacers would have fixed the problem, plus the 5th gear teeth were worn from jumping out of gear so much..expensive parts. So it was better for me to get a used one. Once it was installed, I noticed that the shift lever didn't bob back and forth any more.

[@autofigure00]

the things I'm always worried about with these types of projects is trying to find a specific part (or trying to read part diagrams to decipher a part number to search up and THEN trying to find that part online?) or any specific knowledge needed for assembly to get everything to go properly together (which are both factors that mostly come with experience or industry background). I have vague experience working for an OEM machinery manufacturer (I've installed / assembled machines and assemblies utilizing seals, bearings, brass or bronze bushings and components, basic fixed reduction gear boxes, etc. and I have experience working in Inventor making assemblies and BOMs / cross referencing parts, but I do NOT have engineering knowledge or experience on gearbox assembly and engineering and it seems like knowledge that maybe isn't super available online (or at least not in the same easy to follow formats as every other engineering type thing is). Also knowing what greases, oils, fluids, Loctite (if needed), etc. for rebuilds is a whole other mysterious can of worms with differing opinions and stuff on the internet. I don't have a problem understanding HOW a gearbox works and they really are very simple, but my fear is me possibly NOT knowing something important or forgetting something when it comes to rebuilding it.

[@Joshua_Hammer.777]

I'm working on the courage to rebuild mine in Nissan Hardbody since I have a extra

[@shaunmorrison336]

As the adage goes - 'If you want something done right,...'

[@Ryan-wf7sh]

Thanks for making this video. I have moved from “hell no I can’t rebuild my gearbox” to “hmmm maybe I can rebuild my own gearbox?”

[@Obscuremotorsports]

What transmission are you thinking about rebuilding?

[@Ryan-wf7sh]

@@Obscuremotorsports I’m thinking about rebuilding my 240z gearbox. FS5C71B or FS5W71B, not sure which it is yet, have to pull it apart to find out...

[@Obscuremotorsports]

@@Ryan-wf7sh Yes! Do it. That would be an awesome transmission to dig into. If you don't want to disable your car, could you buy one for cheap and rebuild it and then swap it? That could give you a longer timeline so you could take your time and be patient with the rebuild.

[@Ryan-wf7sh]

@@Obscuremotorsports it’s project car so I have all the time in the world... I will do more research and learn more about my gearbox. Knowledge is power so I think if I learn enough I might be more comfortable. Thanks for the encouragement!

[@Obscuremotorsports]

@@Ryan-wf7sh Don't forget about the importance of learn by doing. Reading 100 books about the transmission is good to get the theory. Cracking those case bolts open is when all that theory goes out the window and it become practical. Have fun!

[@rson7421]

Nice explanation I love it 🥰

[@gliderarts3573]

I'd like to see a video on clutch fork vibration I just lost 3 throw out bearings in 3 months

[@terencehedgcock6790]

Great video Nabil. After watching a few other videos I was more confused than before I started. So many fancy terms from these college professor types lost me. Yours made it very plain, you described everything in a practical way that makes sense. I was always told never to touch a transmission - too many clearances to shim etc and if you don't have the workshop manual & equipment you'll never get it right. You prove otherwise. I recently bought a 2007 Ford Transit and have fixed the rust, dents and brakes, but it grates into 2nd gear - but when it has run a while it becomes easier to slot it into 2nd without grating. The other gears are are fine. I assume the synchro has gone in 2nd. Before I attempt anything, is there anything it could be without taking the box out. Secondly, is it a big deal to remove a fwd Transit gearbox? I have some basic tools but not much space. (I think U.K. garages were built for Minis).

[@Obscuremotorsports]

Hey Terence! Glad your thinking about diving into your transmission yourself! Since it sounds like it's only one gear a worn out synchro is a strong candidate. Especially if it's secon, who knows how many times it's been started in 2nd and accidentally shifted into 2nd instead of 4th. I'd start by changing the oil in the transmission. Catch it in an open container so you can inspect it. If there are chunks of metal, you're in for a good time. If the oil looks like it has tiny silver sparkles in it you might have some premature wear on the gears or shift collar. If the oil looks like it has tiny brass sparkles mixed in it, that's a sure sign the synchro is damaged. If it looks like used oil you'll have to dig deeper and start the fun. When you do take TONS of pictures. From multiple angles and of features that tell the orientation. The Toyota has big corner breaks and grooves on the shift collars and spacers that tell you how they are installed. Look for features like that before you remove the part of the gear stack. I'm not familiar with the transit driveline. If you're lucky you'll be able to disconnect the front and rear prop shafts and it will drop out. If you're unlucky you'll have to from the front differential before you do that. Only way to find out is to crawl under it and look! No special tools should be required.

[@chaddsteinberg3758]

@@Obscuremotorsports Great advice and tips

[@canuckfixit7722]

I was gaining allot of confidence in tearing apart my Honda K-Series MTX when at 10:33 you admitted that you broke something on your MTX in the dismantling process so I'm back where I started. Bummer.

[@Obscuremotorsports]

You almost got the point of the video. The reason I shared the broken bit is because even though i didn't do it perfect, I'm still happy I did it. And the extra $100 on top of the seals/ synchros I replaced is still 1/4 of what I'd pay to have it done by a shop. So even if you make a mistake and break something you'll still save money, and you'll have valuable knowledge for the next thing you disassemble. The lesson I learned in breaking this gear I've already used 2 other times taking other gearboxes apart. If I took 30 more seconds to understand what I was doing I wouldn't have broken that gear. But it's already paid for itself when dealing with gearboxes that have much harder parts to find. I hope you reconsider again and dive into that MTX.

[@jordybrock]

I like how you played with the items as you explained them, I enjoy getting into this kind of stuff with my hands and it was as good as holding it myself. I have two S54 toyota transaxles, one has the LSD but syncro wear on 3rd, the other is better but not perfect. My main concern is shimming, and special tools to get it apart. Ideally I open both, get all the better condition parts and the LSD together, and replace the 3rd syncro because its the one that gets a hard time on track. Is this achievable with hand tools and a puller?

[@Obscuremotorsports]

You might need a press to remove gears or bearings off of the shafts to get to the synchro if the puller isn’t strong enough. A pair of snap ring pliers is a must. Other than that a set of sockets, some screw drivers and some good music is all you’ll need.

[@dolnick7]

Fantastic video. Yes, transmissions are magical scary things not fixable by us mortals. One thing that puts me off are the number of specialty tools and press that are required. I've a 95 Corvette with a ZF 6 speed transmission. Any ideas?

[@Obscuremotorsports]

The only "special tool" I've used is the press. A set of sockets a flat head screwdriver and some snap ring pliers is all you'd need to get started on the transmission. There is probably a Corvette rebuild facebook group. If you need the press you could probably reach out to someone in a group with the same passion and they might let you swing by and use their press. I highly recommend taking lots of pictures too.

[@teamhaselmyer]

What would make your shift knob/shifter pop out of gear when you let off the gas or slow down in gear????

[@daveyfromdownsouth7889]

im 16 and my perents have an 88 nissan sentra thats been sitting for years because its 5th and 4th gear either got striped out or it wont shift into them. getting ready to rebuild it and have a second car. i am already planing on getting a new trans but i might open it up just to see whats going on why it wont shift

[@Obscuremotorsports]

I suggest before getting the new transmission go ahead and rip open the current one. And figure out if you can repair it. You won't have tow worry about the logistics of transporting the new one and then get rid of the old one. If you have any questions you can find me on Instagram and I'll do my best to help troubleshoot the transmission once you have it open.

[@Akya2120]

Thanks for the video. Debating rebuilding my ZF-5 speed, and at this point I'm sure I will when the synchros finally wear out. I have a question for a gear box designer though. The factory fluid is ATF which I find to be a bit silly for a manual trans. I am looking at using a 5W30 synchromesh fluid, which is about 10cSt higher kinematic velocity at 40C and 2.5cSt higher KV at 100C. You think that would be problematic? I am probably going to do it anyway, but I thought it would be worth asking a professional. Many folks said it really helped the trans shift better. I just wonder if a slightly higher viscosity is going to be a bad thing... Or really, how much thicker 10 cSt is.

[@polymetric2614]

I wouldn't even say the inside of a CPU is too bad either. A simple one from the 80s only has maybe an order of magnitude more components than this 5 speed. And a HUGE amount of those are redundant. If you're curious, I really love this series that builds a working computer out of individual components. kzbin.info/www/bejne/fqrdn6WaebiGfa8 I think a lot of times complexity is just perceived - it comes from all the people that say "oh, you can't do that, it's too complicated. just pay someone to do it." If you're really interested and driven, you'll have no problem. Especially if you build your understanding from the ground up like this.

[@VworksArt]

I think the DPS6 Transmission might be an exception to this lol It's terrifying and expensive

[@Obscuremotorsports]

I mean, someone does work on those, why not be whoever owns the vehicle? If your business or or livelyhood depends on it I wouldn't recommend it, but if it's your project vehicle and you want to learn how it works, I still say dig in!

[@VworksArt]

@@Obscuremotorsports I completely agree with you truthfully! I just wish it didn't need a $200 tool to take it apart. If I had my own shop it would make more sense to have though.

[@whatsup8464]

Hey great explanation...I recently bought a cheap 1997 Audi quattro 1.9tdi 5 speed project...first gear when pulling away whines but all other gears seem fine...can you give me any forward direction with what part needs replacing...thank you great video btw...

[@Obscuremotorsports]

That's a hard one to pin point off the cuff. The first thing I'd do is check the fluid level the fluid color and the drain plug magnet if you have one. It's always good to make sure the level is right. When looking at the old oil you're looking for what looks like really fine gold colored glitter or silver looking glitter. If it's gold chances are you have a worn or broken synchro (made of brass) and if it looks silver you have a worn or broken gear, or bearing or something else. If there are chunks of metal on the magnet something is broken. You'll have to start taking it apart to find out what's broken. Be aware that it could be something from a different gear. When in first the shafts are linked to the first gear, which means all the other gears bearings are spinning freely so it could be something on a different gear that gets excited when only in first. I'd also check the shift travels. The fork could be traveling too far and something is rubbing. You could try lightly pulling and lightly pushing on the shifter while driving in first to see if the whine changes. Check bushings in the linkages aswell to make sure things are moving correct. Hope that helps some.

[@whatsup8464]

@@Obscuremotorsports yea cheers for the advice buddy👌...I mean I'd throw a replacement at it but at this stage those gearbox are lik hens teeth being the quattro...and first is a different ratio than a fwd b5 of the same year...which I have two fwd drive gearbox...I mean I could probably split them and fit the torsen differential ...I'm thinkin it may have had a hard life as it is a quite lively car compared to other diesel b5 Audi I have...thank you Nabil👍

[@f0xshadow521]

Which transmission is this? G58? W56? R105?

[@dreednlb]

A guy who makes his living doing gearbox design had trouble putting it back together and broke something.....yeah, I'm definitely not attempting this. 😂

[@Obscuremotorsports]

No trouble putting it together. Just trouble taking it apart. That's the only way you learn. And because I learned, now you don't have to! You should definitely attempt this.

[@MegaHugro]

I'm game, I've been watching Weber automotive and now you and I'm going to drop a 6-speed off my Lexus IS 250, and see what I can do. First though I'm going to build me a big ass work table to spread all that stuff out. BTW, any suggestions on parts and rebuild kits other than the dealership?

[@Obscuremotorsports]

I'm not familiar with the 250s transmission codes, but there are probably a few online shops that have what you need. I'd suggest looking for an IS 250 forum and read some threads in part stores. You probably don't have to ask a question, just do some searching for part stores. I've bought stuff off eBay, lowrangeoffroad, LC engineering and a few other Toyota truck based sites. Which ever is the less expensive is the place I'll go. Good luck!

[@aceince6854]

What website or store would you suggest to buy gears and bearings

[@truckslove]

How similar is this transmission to the five-speed MTX-75 in my Ford Focus?

[@matthewmoore661]

How does one find internal parts such as forks, bearings, etc. for old Getrag transmissions? Do the synchros and other parts have part numbers engraved on them?

[@Obscuremotorsports]

There won’t be any marking on the internal parts. You’ll have to order them based on the transmission code. This is usually stamped on the case somewhere. I’d be surprised if you had to replace the forks. They typically don’t wear, unless something is really wrong. All the bearings will have the bearing number printed on the edge of the bearing races. This is helpful to verify you’re getting the right rebuild kit. Then you can use that information to trust the synchros in the kit etc. if you can take apart the transmission before rebuilding it, you cab compare pictures to what your holding. The last bit is to know that not all manufactures made there own parts. They will work with synchro manufactures and gear manufactures. Which means lexus, toyota, vw, and others will share common parts. So don’t be too concern if you see a part that says it will work with multiple makes and models. It’s true and will be okay.

[@matthewmoore661]

Thanks very much. I wish I had your knowledge on transmissions.

[@truthsayer8918]

I have a Nissan hard body have you ever seen the transmission case damaged that holds the input shaft bearing.... How does the bearing Get destroyed before the transmission case?

[@Obscuremotorsports]

I’ve seen all sorts of gearboxes with different parts being damaged before others. If a bearing gets too hot and seizes it can spin inside the housing bore. Usually the external rings on bearings are a loose fit than the inner ring on a shaft, so they have a tendency to slip easier.

[@308dad8]

So do all manuals have synchronizers? I have an old GM that I think is a 4 speed with top shifter.

[@Obscuremotorsports]

Not all manuals have synchronizers. Much older ones have dog clutches, which are just big teeth interlocks. If you ever heard of someone double clutching, it comes from old transmissions. This is where you quickly activate the clutch to get your engine rpm and transmissions shafts spinning at the same rpm. And then you let out the clutch to fully engage so you don’t grind metal.

[@derekkchung]

Say a tranny with 250k miles is making whining noise but still works. It is because all the teeth of the gears are worn and loose. Would a rebuild kit make it like new? My concern is I don't know at what point a manual transmission is still worth rebuilding.

[@aboodlikesit]

hey wallah

[@HarleyN93]

So is it the synchro that wears or is it the gears themselves my car goes into 3rd to 6th easy but 1st and 2nd are pants? Guessing its the gears as there the most used ones right?

[@Obscuremotorsports]

It's the synchros that wear. The gears are made of much harder material and the gear pairs are always meshed in modern gear boxes. So the only think that will wear out the gears are more power than they are designed for, or really really contaminated oil. Synchros on the other hand are the parts that get pinched, and mushed and mashed. When you grind gears (in a modern manual) you're actually grinding the synchros, not the gears. So it's most likely the case you only need to replace the synchros.

[@HarleyN93]

@@Obscuremotorsports ah nice thanks for the advice and the video!!

[@briantruck2284]

👍

[@TechTokOffical]

Wait,did u say u don't understand why people are afraid to work on "complex mechanisms" after saying u dedicated ur life to the work and that's the reason u can do it?

[@Obscuremotorsports]

Designing a geartrain and working on one are completely different challenges. The work done to develop a gear system to meet requirements for a client is challenging. Lots of understanding tooth stress and misalignment from shaft deflection and housing twist under load and temperature changes. Then there is bearing life you have to estimate. It takes a while for people to learn that. Taking apart a gearbox and putting it back together on the other hand is something anyone can do over a couple weeks. I took transmissions apart for fun many years before I designed them. The point of the video is get people familiar with the only "complex mechanisms" in a transmission, the synchro, which really isn't complex if you just need to know how the pieces fit together. It's like a 1000 pieces puzzle, all I need to figure out is how the pieces go back together, not how the pieces where designed and cut, and made.

[@krnt13]

Nah, bro the inside of a CPU is very simple, but I get that a manual transmission is simple, and auto or a DCT is a bit more complicated...

[@joelp77440]

Sorry dude, it is scary. My uncle was a transmission guy and took me to his shop and he took apart a automatic transmission when I was a kid. Check balls, giant gaskets, dozens of clutch plates, oh my. Manual is much more simple but one simple mistake and and your transmission is toast. Just like the gear he jacked and he knows what he is doing. I got my jeep manual transmission built by a retired mechanic for $700. I had to take everything off and drop it off and even lift it on the table for him since he was old but he had it done in less than a day and told me tricks to make sure I reinstalled it correctly. Still going strong 4 years later and I take that thing off road hard.

[@Obscuremotorsports]

It really isn't scary. With a small amount of patience and a willingness to pay attention to the details anyone can work on their own transmission. Nothing in your list of components is magical or special. It all pieces of metal sliding or rubbing together to make something move as long as you pay attention to how they came apart, you can get them back together. I'm not trying to deter people from taking the path you took. Some people want it done fast, and have the money to make it happen. And as long as you and them are happy, that is all that matters. I'm reaching out to the people that have the smallest bit of curiosity and have the interest to tinker and make mistakes and learn. The people that want to drive up to their friends house and say "I rebuilt my transmission and its still working!". There was a gentleman (We will call him JB) that messages me on IG asking about the same transmission I had. He had no prior experience with doing transmission work, and got his truck for $500ish and it would slip out of 2nd and 4th. when JB had messaged me he had completely taken the transmission apart and needed helping getting the shift forks back together (cause I haven't put that video up yet). We went through his entire transmission and found the syncro of number 2 was cracked, the shift collar for 4 was put on backwards (which wore into the fork) the washer behind 5th gear had a cut off bolt instead of the alignment pin. The previous owner DIYed it the incorrect way. No patience, no attention to detail. JB took the time, found all the issues, bought the correct parts and waited for them to arrive. I think he ended up taking apart the transmission 4 times before he found all the issues. It's been a month since he got it back in the truck and he has been daily driving it with out any issues. in total he spent around $300 in parts and you can tell from his messages he is proud of the work he did. Those are the people I'm telling they should rebuild their own transmissions.

[@williamgoodwin3245]

@@Obscuremotorsports 90 k1500 full size. Manual 5spd. No sticker. Gm put 5 different trans in it. How do I find the proper kit before tearing it a part

[@Obscuremotorsports]

@@williamgoodwin3245 to be honest I'm not at all familiar with GMC trucks. Even though they might have had 5 different transmissions there are probably trim level details that will narrow it down. You know which engine you have, I'd start with some research to see what combinations of engines and transmissions there were. Depending on the driveline setup there could be different transmissions for 2 wheel and 4 wheel drive. If your rear diff is original you can find out the gear ratio and see what transmission were matched with that. I'd also climb under it and take as many pictures as you can. If you can pull off the boot in the cab, take a picture of the shape around shift linkages and the shape of how they enter the housing. Look at sensor locations or any unique features. Find reliable pictures of each of the 5 choices and after a little work I bet you'll figure it out. Good luck!

[@johnwilson7688]

1638jaw every bit of info helps to unravel the mystery ,i've bought a 2nd hand 5 speed, theres noticible backlash between input and output shafts but turning by hand no audible noise, no movement in either shaft, i plan to do two tests ,oil analysis plus i will make up an adapter and spin gear box using my drill if OK in she goes thoughts