LS Swapped lowered 4x4 OBS Chevy walk-around and Parts List

An overview of my 1990 Chevy K1500 that now has a 5.3L LM7 and a 4L80E. I talk about how I made it work and there is a parts list at the end of the video. Like and Subscribe to see more!

[@madmax24v]

Keep the questions coming and I will make a video answering all of them!

[@xxxROCK5TARxxx]

Hey so im limited mechanically somewhat but where can i get a full list or guide for an LS swap on a 98 Chevy k3500 7.4L V8 (454) 4x4 Crew Cab? Please please!!!

[@Knottsqmw]

Max! I’m doing this same exact thing to my dads old obs . Already straight axles the truck and had it road worthy but tore it back down to do this swap . Do you have the push button 4x4 module ? Trying to figure out wiring on it due to having to cut wiring harness from doner truck right at firewall

[@scottanderson6969]

I’d like you to go a little more in depth on getting the instrument cluster working I have a 1990 aswell with a 5.3 swap. People I bought it from had panel all ripped out and an iPad in its place. I went to junk yard and got an oem cluster for my truck. I would love some a little more in depth help on getting this to work

[@madmikescustomDaily]

Just push play #play but great start

[@vicentecabrera3311]

Finally a video of a LS swap that the 4x4 still works. Im definitely keeping my k1500 now

[@jasonyoung-stickles4474]

Facts brother 😂

[@gearhead7896]

I know this video is a year old, but I had to say. Thank you for making it. Lots of great information for the swap in one video under 10 mins. The way you went about it is very easy, logical, but intelligent & intentional.

[@yamahondazuki95]

Good job buddy I love how you actually explain YOUR way of "making it work" which is exactly what some of us are very interested in seeing. Especially with keeping the 4wd working. Keep up the good work man and good job on this build 🤟

[@madmax24v]

Thanks dude!! That’s exactly what I was trying to do in this video. More videos coming soon

[@chadfurtney3019]

Great video with a lot of great explanation of what you did. KILLER looking truck!

[@madmax24v]

Thanks dude!

[@8rancan]

Solid video brotha ... my 97 k1500 needs some love and this is inspiring

[@assaultlick2169]

Sick build, man

[@jakelitz516]

yooooo this is exactly the video ive been lookin for i got a 1990 k1500 shorty as well!

[@madmax24v]

Love to hear it! Let me know if you need any help!

[@jimmymiller4166]

This is AMAZING 😍

[@betosgarage]

great video bro helped a lot ls swappin a 94 yukon

[@frederickwilson2311]

Great job !!

[@Aqoura]

Color code amazing color !!!

[@poppagsworld7294]

Great looking OBS. I am about to put new rims and tires on mine and that info helped.

[@madmax24v]

im glad!! and thanks man

[@poppagsworld7294]

@@madmax24v Here’s a question about the rims for your next video. Do you know what offset the rim is?

[@madmax24v]

@@poppagsworld7294 those are 22x10 0mm offset!

[@CoolCarsKJ]

Nice video

[@madmax24v]

Thank you! And thank you for your videos, definitely helped me build this thing

[@christianmartinez1280]

A rabbit hole of videos got me , quick question what c notch and air bags did you use for your k 1500 ?

[@kevinwest3689]

Clean job, I did something similar, I highly recommend Detroit true track, I went with 488 but my truck's not lowered it's lifted 9" if I can piggy back your channel for a second, I paid $2,500 for a 2004 Chevy 2500 HD. Sold my blown up tb350 and miscellaneous part off the 2004, so instead of paying $2,500 for a 6.0 on line or something. I only have $750 in a 6.0 4l80e , and the front and rear differentials that haven't been installed, 14 bolt full float disc brake, and a much beefier front differential. Point is sometimes it's cheaper just to buy the whole vehicle. What I want to see, how excited you are after you put a cam in it, I suggest Brian Tooley racing truck Norris or hot rod 👍

[@madmax24v]

That's awesome man! And yes I learned my lesson, should have bought a whole rig. A can will defiantly be in the near future hehe

[@TheJeffe613]

Nice!

[@4HorsemenCustomz]

I just got another OBS and that’s my plan just to make it reliable

[@marcosmartinez3681]

Then you come to the right place

[@mikemiller9339]

Can you go details about how you got the speed to work

[@ObsAl]

How did you get the 4x4 to work what wiring diagram did you use

[@eldersloo3556]

I’m sure you’ve answered it already, but what’s the color code? Love that paint.

[@alpinesupra88]

Do you have a part number by chance for the 454 radiator?? Can’t see it on your list due to the “next” video tag sitting in the way.

[@ShortBedWilly]

Mind me asking how did you connect the t case to the LS harness to the Ecu or how do I get the wiring done on the obs T case with the new LS harness to give it power I also have a manual T case with a floor shifter

[@jadoncrabtree9749]

I have a 92 1 ton OBS I’m swapping Same trans 4l80e Would love to know what you did with the fuel system ? Swap internal pumps ? And which oil pan you used to clear the differential up front

[@Justintimemetal]

Did you keep factory truck oil pan? Have to notch frame?

[@jerryl8093]

Sick build, how did you mount the fans to the rad?

[@madmax24v]

Thank you! And the bottom of the fan shroud is tucked into the core support while the top is held in by the upper radiator support that i made

[@jasonyoung-stickles4474]

What headers did you use just making sure I get the right ones for my build

[@hebrewnation9]

Hey Max what color code blue did you use on this obs truck ?

[@ramblinreelstv2335]

What makes the T code block an easier swap? Looking to do a similar setup on my 90'

[@manuelsegarra697]

Amazing job how u get the volt gauge to work

[@Helloboby]

Mine still has the factory tbi fuel pump, do you think that’s enough fuel pressure for a ls swap

[@ManuelHernandez-gi7sk]

what size of serpentine belt you use i got the same brackets for mine

[@isaachernandez6413]

What made you decide a 5.3 rather than a 6.0 Would it be the same with a 6.0

[@tylermarshall6852]

What’s the specs on the wheels and tires? Got a lowered 93 k1500 rcsb and am wanting to run 22s but not sure which size to go!

[@Chicothadonn]

Can we see the shift cable on the trans? I also have a 4l80e on my obs truck

[@josephvasquez2705]

What brand and size of airbags did you put on your truck? Sounds like I'm going through the same problems you have already gone through doing a C-notch on a 4x4. Thanks in advance.

[@mohammedabdulla4059]

Hi my man I need some help to lower my truck, I’ve 98 Silverado k1500 and I want to know the exactly Belltech parts to lower my truck, I did a quick search and I figured the all 4wd truck can lower only 2/2 by belltech kits, is there any parts can install to lower the truck more than 2/2 from the front and back?

[@Bigz28]

How much total are you in for the ls swap and keeping the 4x4?

[@Smittyyracing]

How did you get the cosmis in the 5x127 bolt pattern

[@eliwetch2944]

Dude are you in North Dakota?! I swear I be seeing you around out by university of Mary

[@tatehullinger7504]

Do you have any info on the input shaft for the t-case to the 4l80? Where to purchase that shaft? Nice work! Very informing!

[@madmax24v]

Yes! look up 32 spline np241c input shaft. should be many available. i got mine on ebay. and thank you!

[@philroth8444]

I have a1990 chev 4whl want to swap the Eng trans to LS what kind of money after the Eng and trans can I expect?

[@darioguerrero4374]

What headers are you running?

[@hernangonzalez9287]

Got an 88 same color 106k original miles

[@bobd8541]

So I'm guessing there's no way to keep the modern transmission and make it work with your 4x4? I'm looking at keeping my 350 and trying to do the sonnax 2.84 gear swap in my 4l60E but if the cost of that could afford me an LS swap then that's what I'll have to do but I still want to keep my four-wheel. drive and get better gear ratios obviously.

[@whereisjin]

I have another possition AC on my engine 5.3 Suburban, and cant put in 5.3 in Silverado Ext cab Silverado 1990

[@alexbalderas728]

So I got a 1998 gmc sierra k1500 4.3 v6 vortec can I use my stock 4l60e transmission?

[@Eltali650]

im doing a 4.8 swap atm but i dont know what to start with

[@lsswap5.3atostoh68]

Is it possible to get a parts list with part numbers for the suspension?

[@anthonymetoyer2029]

What can be done to tuck the front tire?

[@juventinoarriaga5936]

Cold air intake information please.

[@mattquin8211]

Great video! Did you retain the column shifter? If so what did you need to do to make it work with the 4l80e ? Getting ready to LS2 4L80e swap my ‘89 K1500. Thanks

[@madmax24v]

thank you! and yep still column shift. I used the stock linkage. I made another video answering questions from this video and went over the shift linkage a little more

[@joblo2299]

What u use for fuel pump n lines

[@user-eq5rk3li7x]

We are building one now nv4500 4x4 5speed just put the ls 3 gen waiting on the wiring harness. It’s easy to turn a 2000 dollar truck turn it into a 7500 dollar truck. I’m about to build one and sale it. I’m a ford mustang gt guy but I know what people want, not many can drive a mustang you have to ride it with respect. They don’t call it a mustang for nothing they know what they was doing.

[@adamnavarro6130]

Real good video. You didn't mention how long to do the swap and how much..

[@madmax24v]

Thanks! And it took about 3 months and I just worked on it when I could as I’m in college and own a small business. And total cost with everything in that video is probably a little over 10k not including the price of the truck.

[@macielandsons]

Can you post the link to the air bags.

[@drtb69]

Thank you for this video. I am in the midst of transplanting an 06' yukon LM7 826 heads, auto trans 4l65e i think. , and I have the entire Yukon intact and running .. so I have fuse block , ecm, accelator pedal, all wiring, exhaust, sensors, air box, radiator,etc. The yukon slt has the 4:10 gearing so I may use the front and rear axels at a later day .....way....way down the road. And like you just going stock to start with stock tune. And initially just the engine....but now My Question is :: is it easier to swap the Yukon tranny and engine all in one swap....rather than just the motor as I planned to begin with. Reason my 4l60e died and somebody stole the new tranny I had to replace it Its all going into my 94' k1500 4x4, ext cab z71, currently with 5.7, broken 4l60e and 3:73 gears thanks for the info in this video. It has already helped me. God Bless

[@madmax24v]

i would swap motor and trans at same time, because the LS harness or any stand alone LS harness will have a trans harness and plug. then they can talk to eachother and hang out

[@kalebdelanghe9236]

Can you explain the t model vin?

[@rockenespanolrock3130]

Like your truck i would appreciate it if you would tell me What fuel pump you used? Cuz mine keeps messing up. If I press the gas pedal it won't run it feels like it doesn't have enough gas.

[@madmax24v]

Thanks and look this up and it should come up: HFP-367-36704

[@normanfab4178]

Whats the specs on the wheels and tires? You said x10 but what's the offset

[@edgardocastillo7642]

What drop you went with?

[@devonmoye2922]

Ok so I need some help I’m wanting to swap my 1997 305 1500 to a 5.7 ls

[@cesartorres7976]

what headers yall running

[@Rattlesnakeofficial1]

can you 4l80 e swap a 1994 k1500 5.7 v8 with a 4l60 e

[@amosvaldez5125]

Can you talk a little more about the fuel system and wiring that’s what I’m mainly consider with In my build

[@madmax24v]

I learned all about the fuel system through @cool cars KJ s KZbin channel. I listed all the fuel system parts at the end. What would you like to know?

[@Sub4CarClips]

What color code I want something similar on a 08 Sierra

[@brycepeters964]

What paint color and code is that??

[@deadboyinside]

Can I do this to my 94?

[@OBS_Max]

so i have a 1996 k1500 shorty with the 243c t case and i was wondering if id have to do anything different

[@madmax24v]

Should be the exact same except some gauge wiring stuff!

[@tobywhitaker4246]

Nice work! I have a 97 Z71. I would like to install my 2002 6.0 & 4L80E. Do I need a transfer case adapter? It has the stock 4l60 transmission.

[@madmax24v]

No adapter just have to change input shaft on t case

[@tobywhitaker4246]

Well transmission has six holes, & T-case has four holes for bolts🤔

[@devonmoye2922]

But I’m stumped on how to wire everything

[@TamarrionMartinez]

Will these same parts fit on a 93’ 2 Door Yukon? If they do I’m gonna do this.

[@madmax24v]

Yes they should! Some of the wiring is a little different on those newer trucks but I think hard part wise they are near identical

[@G_marvelous85]

Are you in Ellensburg bro? I ask cuz I'm in Yakima and gonna be doing a swap on my 93' 2dr yukon.

[@madmax24v]

Yes sir I am!

[@G_marvelous85]

@MadMax24V awesome! I'll hit you up on i.g or Facebook sometime bro

[@jonhunt7466]

What pins did you use to have the 4x4 work? I cant get mine to work.

[@madmax24v]

There is a factory harness that runs from the front axel and actuator to the t case shifter in the floor. I used that and cut out the purple tcc wire. That wires is used so you can’t lock the converter in 4x4 low I believe. I never plan on using 4 low in this truck

[@jonhunt7466]

@@madmax24v thanks I will look into that I thought the pcm controlled the front axle actuater and not the transfer case

[@masonquade8385]

curious on the grille work. Have a 1998 k1500 that needs some help.

[@madmax24v]

What grille work do ya mean? I got this truck with that grille

[@masonquade8385]

@@madmax24v I’m curious on what inserts you put in the grille

[@mayito2651]

How did you make the stock cluster work

[@madmax24v]

yep light comes on. just nothing happens

[@puppetmasterblaster]

where did you order the rad from?

[@madmax24v]

1A auto! For a 1990 454ss truck. I used the rubber bushing for the rad on the top and bottom as well. Got those at Napa

[@smokeitloudbanks]

Nice truck look nicer with smaller rims and fat tires

[@madmax24v]

These are my pretty wheels and tires. Small wheels and slicks on all 4 corners will come someday!

[@williammiddlebrooks9954]

what's the color code for your paint?

[@madmax24v]

Not sure exactly. I want to say it’s a factory color with metallic. My grandpa had is painted around 20 years ago

[@calvingrant9800]

Did you have to run both ECU to get the gauges to work

[@madmax24v]

Nope! Truck only has ls Ecu

[@calvingrant9800]

So did you repin it or does the gauges not come from the ecu

[@madmax24v]

@@calvingrant9800 guages so come from ecu in glove box. For temp I used factory sensor adapted into the head. Voltage comes from 12 key supply in glove box. Oil pressure is factory with 99-00 oil pressure sensor (plugs right into factory wiring, fuel level is all factory untouched. And Speedo I made a t for the vss output on 4l80 and sent one to ecu and other to guage!

[@calvingrant9800]

@@madmax24v thanks for the info

[@juano5062]

Are you out of Ellensburg wa?

[@madmax24v]

Yes sir!

[@juano5062]

@@madmax24v ayy hope to see it one day, I’m out of Yakima, I have a 95 that I’m doing an ls swap in as well

[@alejandroarce7069]

Do you have part numbers for the drive shafts ?

[@madmax24v]

They were custom made

[@alejandroarce7069]

@@madmax24v thank you bro !

[@DanielMartinez-mg2vi]

What headers u put on

[@madmax24v]

stock haha. for now

[@JoseCruz-qf6ui]

Is the psi harness better than the terminator x Max?

[@madmax24v]

Terminator is better in my opinion. Psi is cheeper and uses stock ecu

[@JoseCruz-qf6ui]

@@madmax24v How much was the whole swap?

[@madmax24v]

@@JoseCruz-qf6ui around 6 or 7k. I didn’t cut corners

[@JoseCruz-qf6ui]

@@madmax24v Were the transmission lines plug and play?

[@madmax24v]

the electrical side? yes. the cooler lines were AN lines with an auxiliary cooler

[@diyguru9017]

Can I purchase some of those fan/radiator mounts from you

[@madmax24v]

I made them from some scrap steel, are you doing the same swap?

[@diyguru9017]

@@madmax24v swap already done I got the same fans and radiator setup I saw your brackets and I like them, what would you charge for a set

[@user-sy4ub7fg3n]

What would you charge to do this work?

[@madmax24v]

All depends on whatcha want!

[@racingwithbeto6309]

Ellensburg wa??

[@madmax24v]

Yes sir!!

[@racingwithbeto6309]

Damnnn. Im down the road from you. I also have an obs that i want to ls swap. How long did this swap take you once you had all the parts?

[@bryantrejo3179]

4x4 still works ?

[@madmax24v]

Yep!!

[@marcosmartinez3681]

@@madmax24v howl would it work with the V6 4 x 4 Cheyenne ?

[@earnestjohnson2174]

Bro I need a swap in mines how much?

[@madmax24v]

Where ya located? whatcha got? Dm me on Instagram

[@bryanramoutar5412]

Where you located?

[@madmax24v]

Ellensburg wa!

[@diyguru9017]

i will pay you for a set of the fan mounts

[@madmax24v]

How much would you wanna pay? im unsure what they are worth. my roommate and i made them and were willing to make another set

[@Nathan_Norby]

Ruined a classic, shoulda built the TBI!

[@madmax24v]

Tbi stands for tiny burnouts indefinitely. Can’t have that

[@CoolCarsKJ]

LS power all day!