NV4500 Transmission Teardown & Inspection (Part 1)

[@jonbrown9641]

the calm "prob got a buddy that needs a beer" really hit home. lol

[@adamcarpenter5190]

Planning on diesel swapping an '88 Ranger with a 4BT Cummins mated to an NV4500 with an NP205 transfer case. I am definitely a "hobbyist" and by no means a professional, but these videos and Torque King as a whole are giving me more confidence day after day!!

[@kevinfreemire2496]

Very thorough. Thank you

[@uzifouryoutwosay]

Chris is a solid dude, and Torque King is the place to go for all your NV4500 needs!

[@Dan-in-the-Wild]

Oh man, this is the BEST! I rebuilt mine in 2020/2021, before these videos were posted. I got all my parts through Torque King because they just had everything I needed under one roof. Way to go guys. This is a great video series!

[@Rickman357]

"I'm gonna use a small hammer" @15:50 😂 dang I wonder what hIs BIG hammer is? 🤣✌️🤙

[@Precisionmobile]

so grateful for you to take the time to show in detail this trans purchasing a 12v soon

[@bernieduplan7181]

Thanks for taking the time to make this video! I'm about to tear into the NV4500 that I used for my Chummins. It has an issue where it doesn't like to go into any gear after sitting at idle in neutral, such as at a stop light. I have verified that the clutch is fully releasing with the rear tires off the ground, and it releases in the top 1/2 of the pedal. I'm thinking it is probably bad synchros on the 300k mile trans, but we'll see!

[@TorqueKingTV]

Could be the pilot bearing hanging up too, either caused by the bearing itself or excessive end play causing the input shaft to tilt a little.

[@jimkincaid2958]

I'm rebuilding my transmission off of your videos and I sure appreciate the help thank you

[@uzifouryoutwosay]

I’d say you got pretty western with this one here sister. It’s like hanging out with my buddy Chris while he works on a transmission.

[@heavymetalvintage4x4]

Great video! Thank you!

[@thesillybilly]

I never saw you pull the part that fell out of mine. It was a nut like the one you pulled off and a washer and a metal cylinder. I wish I could send you the pic so you could tell me why it would fall off after removing transfer case.

[@TorqueKingTV]

send us an email! [e-mail]

[@r.g.3688]

I had to replace the counter shaft and input shaft on my 94 chevy nv4500. Counter shaft come out with end play at just a little over .002 but after replacing all the bearings The main shaft is far too tight and trying to go back and check to see if all the bearings are seated completely down. At first I was only at .001 end play on the counter shaft but after tapping the front bearing with a punch it gave my a little more than the .002 that I needed. Found out that the pipe I was pressing bearing on with was a hair too small and not pressing the bearing all the way down when using my 20 ton press. Gonna go back and check all the bearing in main shaft and see what it will give me on end play.

[@jefflinn6540]

Great video. Know what to expect when I do mine. Thanks!

[@4xprops457]

Great videos even more great service! Great people to deal with and the best place to buy your parts!

[@TorqueKingTV]

Much appreciated!

[@michaellawton36]

this is great look forward to the next video. i have one that is in need of at least a refresh. early model gm. 4th synchro is all but out and 3rd is getting funky. ive already learned a bit, i didnt seal the front bearing retainer. guess i need to manual

[@inomyguns12345678910]

Perfect detailed video

[@TorqueKingTV]

Thank you!

[@gilking6540]

Thanks for making these videos! These are great people to do business with and they ship fast!

[@reedleslie8028]

Thank you!!

[@TorqueKingTV]

You're welcome!

[@bobbywinn6548]

Awesome!! Thanks for the video.

[@pitt42075]

My "freshly rebuilt" nv4500 was making all kinds of noise. 5th gear stopped working, so took it out the transmission to inspect it. The shift fork had jumped out of the shift coller groove. I have no idea why. I inspected the shift interlocks and everything seems OK. All the synchro teeth looked fine, gears looked fine, 5th gear nut tight, etc As for the noise, I found that the input shaft thrust bearing had disintegrated and the pillow bearing cage was chewed up. I'm wondering what would cause this. I replaced (in the correct orientation )the input bearing retainer, input bearing, the pillow bearing, and the thurst bearing. Long story short, after about 400 miles the transmission is making the noise again and pretty sure there are going to be bearing issues again. It ran great for a bit after replacing the parts and now I'm not driving it for fear of doing more damage. Any advice would be greatly appreciated.

[@TorqueKingTV]

What was the shaft end play after you set it up the second time? Those going bad are usually an indication it wasn't set correct the first time...

[@kristenhoumis4745]

I had rust underneath 5th gear also. My inside top cover was black I noticed yours wasn't. Any idea what causes that ?

[@TorqueKingTV]

That "rust" under the gear was probably mineral transfer from oil, it is common to see under close tolerance parts. Black under the cover is not changing oil regularly enough or overheating, and can become abrasive to shift parts or cause a shift rail/ poppet plunger to seize.

[@chriswood9644]

Maybe you can help ive got a 93 dodge w150 4x4 with the NV4500 transmission would you know what automatic transmission will work in it place

[@TorqueKingTV]

Hi- we don't deal with autos but a 727 or 46RH would be correct for that era, driveshaft length would change though.

[@jeremymyers5643]

Thanks for taking the time to do this, do you recommend a certain manual for rebuilding nv4500? Also any plans for 241 transfer video?

[@TorqueKingTV]

Yes and yes! below is a link to the service manual as well as a video service guide. We will be doing transfer case videos in the somewhat near future. torqueking.com/product/771003/tm1003-shop-manual-for-new-venture-nv4500-5-speed-transmissions/ torqueking.com/product/991003/vsg1003dvd-nv4500-rebuild-video-for-new-venture-5-speeds/

[@adamdunn9171]

Could you link me to the bolts for the bell housing I can’t find them on your website

[@TorqueKingTV]

Hi- we don't carry the big bellhousing bolts, but most of the other ones we do.

[@adamdunn9171]

@@TorqueKingTV could you tell me the size bolts so I can look em up

[@JoseAguirre-bw5tv]

Do yall sell NV4500 transmissions

[@TorqueKingTV]

Just parts and kits to rebuild them. torqueking.com

[@jaymack6341]

Are you guys gonna do an nv5600 video

[@TorqueKingTV]

We do have a core NV5600 here to make videos and exploded views, but it will be some time before we can work it into our schedule..

[@WesternReloader]

Can I adapt an NV4500 to replace my NP435 for my 1980 Bronco?

[@lermancurry9651]

It's obvious You know what you're doing!! When last have you put your hands on a hm 290.. and are parts still available for a rebuild, my Son's gearbox is stuck in neutral and will only attempt to take 4th with the grinding. I guess he can't complain after 424k miles on it!?!

[@TorqueKingTV]

That's pretty good service life! Unfortunately we don't have much for that but send us an email to [e-mail] and we can check things out. What we currently have listed can be found here torqueking.com/category/1988-2007-gm-hm290-nv3500-manual-transmission/?sort=bestselling&limit=100&mode=4

[@lermancurry9651]

@@TorqueKingTV Thanks so much for your reply. Yes Sir.. I taught my Son to drive this manual when he was at age 11 .. and helped him restore it at 21 when I signed it over to him. We're Bahamian.. and live on the island of Abaco. Thankfully.. we're close to Florida, and our freight boats are weekly to the Port of Palm Beach.. weather permitting, anything we purchase from the U.S.A. has to be shipped to that Port. Do You offer shipping to Florida.. I'd like to give your info to our local auto parts store here in the Bahamas.. if you're ok with that!?!

[@TorqueKingTV]

@@lermancurry9651 Yes, we can ship anywhere in the world. Just put whatever address you need in the check out and we will send it there! Florida is probably 5-6 days transit time with regular ground shipping. And yes, please do share our info!

[@lermancurry9651]

@@TorqueKingTV Thank You again.. I'll open the gearbox with my Son and make a list.. and I'll definitely share your contact info!!👍

[@joshuaatkins5197]

When you're looking at the 3rd gear tear I could swear there was chipped or worn gear edge to the back side of the trans. My imagination? Or does it not matter because its not on the side of the synchros? Thanks

[@TorqueKingTV]

Hi- I think that is just the way the gear teeth are cut that you are seeing. The gear teeth looked good, but the syncro teeth were worn (in part 2 of this video)

[@joshuaatkins5197]

@@TorqueKingTV thanks for the reply! I just got done watching part 3. Good videos. Looking to rebuild mine and this 3 part series helped me a lot just wrapping my head around it. Thanks. Off to find a build video

[@TorqueKingTV]

@@joshuaatkins5197 We do have a service manual and service video for the complete overhaul that goes way more in depth than this KZbin series. torqueking.com/product/771003/tm1003-shop-manual-for-new-venture-nv4500-5-speed-transmissions/ torqueking.com/product/991003/vsg1003dvd-nv4500-rebuild-video-for-new-venture-5-speeds/

[@joshuaatkins5197]

@@TorqueKingTV I appreciate that. Seen it referenced here and a few other places while I was searching for information

[@Augustine717]

Where are you guys located? I have a Chevy with the nv4500 and can’t shift into any gear.

[@TorqueKingTV]

Billings MT, but we ship parts anywhere!

[@Augustine717]

@@TorqueKingTV ok thanks

[@richarddodds9326]

I'm tearing into one now, the front gears on the main and countershaft are completely stripped and input shaft bearing .Got to fix it cheap and good.was working and was stolen by teen that said it just locked up and quit at 15 miles.

[@TorqueKingTV]

yikes!

[@kennethheying7845]

Can I ask you a question? I have one of these. The last thing I did was backed it into it's spot. Now I can put it into gear and it doesn't move and it bogs down the motor when you ease out the clutch. I see you put it into two years and it locks up like I think mine is doing. Is there any way you can pop it out of that to get it to go again? Thanks, this video is awesome and gave me great insight to work on it.

[@TorqueKingTV]

You may have lost a roll pin on the shift fork. You can shift everything by hand by removing the top cover. If you don't have a removable floor plate, the transmission needs to be removed from the vehicle.

[@robertbrewer2179]

I lost the roll pins on the 5th gear shift fork while the truck was in 5th gear. So was both in 5 all the time and also in whatever other gear you moved the shifter to.

[@michaelshirley7176]

what do you recommend for gear oil in these transmissions. I know it says castrol but I can’t seem to find that stuff anywhere just wondered if you would know?

[@TorqueKingTV]

The Castrol stuff is discontinued, we have found RedLine MT-85 to be an excellent replacement and offers a superior shifting experience compared to other popular name-brand replacements. torqueking.com/product/90020/qu90020-mt-85-75w85w-nv4500-manual-transmission-oil-by-red-line-50504-1-quart/

[@Z71ricrkilr]

I have a gm nv4500 behind a 12 valve cummins in a k30. It used to be a lil sticky goin into fifth gear on occasion. At one point I was cruisin about 70 and someone cut me off, after a hard brake I tried shifting out of fifth an it wouldnt budge. Eventually came out after a full stop but after puttin it back into fifth down the road it worked but I had to pull the shift tower out to manual get it back into nuetral. Does that sound like a syncro problem or a shift housing issue?all gears an reverse work, I been drivin it with no od for a while but would like to get it back

[@TorqueKingTV]

I have talked with several people having a very similar issue. I would check the shift top, make sure that it slides smooth off of the transmission. Pull the tail housing off and inspect the synchro and gears as well. I know it's no fun pulling everything apart but it is really the only way to see what is happening. Any further questions give us a call

[@hunterstevens3745]

Are the main shafts the same length on the 4wd and 2wd nv4500’s?

[@TorqueKingTV]

Hi- The shafts vary in overall length due to slip yoke vs fixed yoke configurations, but if you had 2 particular applications in mind we could provide those lengths.

[@chriscalhoun.concretepumping]

I know this is an older video but how different will it be doing a 2 wheel drive version? I plan to rebuild one in one of my work trucks. I had problems with it jumping out of third gear so while driving it back to the shop skipping third going to fourth it exploded the clutches. Was hauling about 10k pounds included what was on the flatbed. I plan to just go back with a cheap build to use around the farm. I have the Allstate Gear master rebuild kit with upgraded fifth gear nut and shaft. I ordered phoenix friction stage 2 heavy duty clutch and flywheel kit. Gonna stick with the stock 12-1/4”clutch. Does that all sound ok?

[@TorqueKingTV]

The process is nearly identical for 4wd and 2wd. This transmission doesn't like a clutch bite too much over stock, otherwise all that should get you a nice putt around rebuild.

[@chriscalhoun.concretepumping]

So if I order the manual from you guys, I can follow the instructions and get it done you think? I just don’t want any surprises jumping out at me lol. Thanks

[@TorqueKingTV]

@@chriscalhoun.concretepumping the TM1003 manual is all you need for instruction to get the job done. We also offer VSG1003 video on it, which also covers the rebuild but doesn't have all torque specs and other info laid out in 1 section.

[@seamansj]

Great video. I replaced my 5th gear and nut cause mine kept jumping out of 5th gear and every video I watched said that that nut would back off and make it have that problem. So I changed it. It did have 1 gear broke off. But it didn’t seem like the nut had backed off. Anyways after all said and done, it still jumps out of 5th gear when I’m going down hill. Someone told me that the shifter on top had some “plastic” things that help hold it in place and they could be wore out. Any ideas on that. I have tried to find some videos on the upper shifter and those parts but can’t find any. Any help would be greatly appreciated. 🙏

[@TorqueKingTV]

Hi- you have a few issues here as well as a bit of misinformation. When the nut backs off, you will simply have a ghost gear. The shift fork still locks in the countershaft gear, but there is no matching mainshaft gear to accept the power as it has floated back on the shaft. Popping out of gear is usually because the shift poppets in the top cover or syncro struts on the gears are worn or packed full of gunk. The shift tower itself can also wear and wont shift far enough to properly lock the gear in. It could also be the syncronizer teeth themselves have worn to a taper and thrust in 1 direction or the other will disengage the sliding collar for that gear. If you are breaking teeth of either of you 5th gears, that is an indication of excessive countershaft end play due to improper setup or bearing wear. It is also possible that the mainshaft 5th gear is getting loose on the shaft itself even though the nut has not backed off. Keep in mind these transmissions generally need an overhaul before 150K miles, if you are getting close then several of the above issues may apply. Top cover rebuild kit selector: torqueking.com/product/sku/qu10222-qk1144-qk1145-nv4500-top-cover-kits-selector/ All other parts related to the NV45oo can be found here: torqueking.com/category/1994-2002-dodge-nv4500-transmission/

[@seamansj]

@@TorqueKingTV yes, it has over 400,000 miles on it but hasn’t gave me no problems until this. Guess gonna have to bite the bullet and have it rebuilt. Thanks for answering my question. Might try the top cover rebuild kit first. Thanks again

[@carlosvital5805]

Hello sr I am rebuilding my nv4500 what is the right oil that you recommend for this transmission Thanks your videos help me and others a lot

[@TorqueKingTV]

We recommend RedLine MT85, which has a much better track record than competing oils in online searches and forums. When I say better, I mean absolutely perfect track record according to everything we have found so far. torqueking.com/product/90020/qu90020-mt-85-75w85w-nv4500-manual-transmission-oil-by-red-line-50504-1-quart/

[@carlosvital5805]

Thank you sir that helped me a lot

[@EastCoastFringe]

Can I take the tail shaft off a 2nd gen dodge nv4500 2wd and put a tail shaft on for a 4x4? Im building a v10 4x4 but its automatic. I can buy a 2wd parts truck thats nv4500 and v10 ,but its 2wd. Help!?!

[@TorqueKingTV]

Absolutely! You will also need the 4x4 tailhousing. torqueking.com/product/10060/qu10060-cast-iron-nv4500-4x4-transmission-tailhousing-for-dodge/

[@EastCoastFringe]

@@TorqueKingTV thanks so much!!!

[@EastCoastFringe]

@@TorqueKingTV good pricing. When it comes time , I will be buying everything I need from you. Thanks again.

[@joemorris596]

Thank you for your video My 1st time returned to transmission it's very helpful thank you

[@olivialuevano6644]

I am having problems with shifting, the hardest gear is revers, would the problem be in the shifter or something in the transmission? This happen all of a sudden on a trip, slowing down when to down shift and could shift gears, had to work hard at shifting, got to my destination and revers is sure hard to engage. Can you give me some pointer and where to look for this problem?

[@TorqueKingTV]

Hi- on this trip were you towing a heavy trailer? Could have cooked the oil so it interferes with the synchronizers.. These transmissions have an average lifespan of about 150k miles, if it is close to that you could have some bearing wear causing misalignment. I'd change the oil to start with and see what happens, also examine the old oil for contamination. Beyond that feel free to give us a call and we can troubleshoot over the phone. [phone]

[@jeremymyers5643]

Also I've been running John Deere hygard in my nv4500 for oil, do you know of any reason it would be bad for it, as it's a gl4 oil and I believe works out close to the recommended viscosity

[@TorqueKingTV]

Hi- I have heard of people using Hygard in both manual and automatic transmissions. While we can't officially recommend it, I will say that if it ain't broke, don't fix it! Might not hurt to see if you can get ahold of a fluid spec sheet and compare it to the Redline MT85 that we recommend just to get a properties comparison.

[@jeffhicks1008]

My 4500 will lock into 5th gear if you coast too long with the clutch in and the tranny still left in 5th gear otherwise it works fine but third gear synchro is going bad so it is time to go thru it. 575,000 miles and never been touched. Was going to do a G56 swap out but is much cheaper to go with a Gear vendors over/underdrive to split 3rd and 4th and 4th to 5th I will be using your products for this job Thanks

[@vinceraniero1217]

Hey man do you sell that big ass plate peice you whacked with a hammer I'm currently rebuilding my nv4500 and I'm stuck at that part. I'm currently building a high hp truck and this trannys my last step

[@CrashEightyTwo]

Can anyone recommend a place around Montgomery Al to get my NV4500 swapped and or rebuilt? It's n a 1992 D250.

[@TorqueKingTV]

I don't know of anyone down there, but Long Range Gear can arrange shipping for rebuilding in Washington.

[@sheridanrambo8620]

Looking for an nv5000 for a gm..... anybody know where I can look?

[@TorqueKingTV]

The correct bellhousing has not yet been developed for GM applications. Not sure what plans are for this currently.

[@davenportbrennan]

He said a small hammer. Proceeds to pull out the largest dead blow ive ever seen.