Jump to content

2019 Chassis Swap with 2015

Jeff1978

By Jeff1978
in Engines & Drivetrain

 Share

Recommended Posts

Jeff1978 Enthusiast

Jeff1978

Posted
  • Author
Posted (edited)

I just found the window sticker for the 2019 LD, and it says the rear axle is 3.42 ratio.  I assume the front is the same.  I've attached the photos of the vin and another sticker from the 2015 z71.  not sure if it helps @newdude @mikeyk101

IMG_9366.jpg

IMG_9367.jpg

Edited by Jeff1978
mikeyk101 Senior Enthusiast

mikeyk101

Posted
Posted

I would probably assume the same thing as well. The rear gearing should be the same as front gearing. There may also be a sticker with all the codes for all the different options and specs stuck on back wall of glove box and that would probably help. Not sure if you have access to that.

Buckwild27 Enthusiast

Buckwild27

Posted
Posted
18 hours ago, mikeyk101 said:

I could be wrong but I thought there were different gear ratios available. I don't think there was just a single "standard" gear ratio used. You would just have to know which gears are in the differential you picked up and make sure it matches the rear gearing. I am fairly certain that 3.42 and 3.73 were two of the possibilities but cantt remember the third. Maybe 3.04???

3.08 is the other one. 

  • Like 1
newdude Senior Enthusiast

newdude

Posted
Posted (edited)
23 hours ago, Jeff1978 said:

Ok so the front differential from my 2019 1500 LD is cracked (left).  I picked up a front differential from a 2015  1500 (right).  Can anyone tell me if the 2016 differential will work?  See attached pics.  

 

I also attached a pic of how the chassis looks now.  Just trying to get everything bolted up, brake and fuel lines ran before putting the body back on.  Thanks for the help!

 

Jeff

IMG_0407.jpg

IMG_0589.jpg

 

 

Not the same.  Axle on the left is 3.42, axle on the right is 3.08 (2015 truck).

 

The good news, the housing and actuator are all the same 2014-2019 so you could (if you wanted to) swap the gearing over and re-gear the 2015 housing with the 2019 ring and pinion and diff.  

Edited by newdude
  • Like 1
  • 3 months later...
Jeff1978 Enthusiast

Jeff1978

Posted
  • Author
Posted

So when I cut the chassis down I now don't  have space for the fuel vapor canister.  And unfortunately someone seems to have thrown it in the trash.  My question is, Can i just tie-in the vent line from the engine to the vent line at the tank without the canister/purge valve?  If this is possible, will a different gas cap need to be installed so the tank can vent? Or do I just  let the tank vent to atmosphere  and return line also just vents to atmosphere?

 

image.thumb.jpeg.d010575f849f6afc270e21b7b7bdcb8f.jpeg

 


 

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share
Go to topic listing

  • Latest Articles

  • Posts

    • Chuck FB
      Joke Thread

      By Chuck FB · Posted

      A little girl said her prayers every night before bed and she asked G d to watch after each person she loved. One night she forgot to pray for her babysitter and her babysitter died. A few days later she forgot to pray for someone else and they died. The next night she forgot to pray for her dad. The next morning her dad was terrified. A bus almost crashed into him. He almost fell off a fifty foot ladder and almost wrecked on the way home. When he arrived home, he said I had a terrible day. His wife replied, “You think you had a bad day? My aerobics teacher died during class.
    • Jsdirt
      What did you do to your "other" car (aka musclecar) today

      By Jsdirt · Posted

      Nice! I had one here, once. The car dealer I used to haul for stopped by with it. That was over 10 years ago now. Those are SUPER rare these days, especially up here! Never even see them at car shows anymore.   https://postimg.cc/0rvcNZ1W
    • KARNUT
      What did you do to your "other" car (aka musclecar) today

      By KARNUT · Posted

      I remember watching one of the auctions on TV. It just happened that they had two little red express trucks. My brother bought one new in 1979, still has it. So I hung on to watch them cross. The retro redone example brought more bids and went for more money than the original one did. My brother has redone his 3 times and raced it. He’s now in the process of making more tame for cruising. 
    • Jsdirt
      What did you do to your "other" car (aka musclecar) today

      By Jsdirt · Posted

      I always upgraded the suspension and steering components - bushings and ball joints, and had older cars that I could out-corner ANY modern car with. I used to be able to take my '78 Cutlass on off-ramps at stupid speeds and make the sharp MA corners without even squealing the tires. So much fun. My '72 El Camino must've had work done by the previous owner, since that thing seemed to handle even better than the '78.   I think the suspension & steering on the '72 was much more advanced than the '64, so that probably just made a good system even better.   I'm the same way with vehicles. I hate having to worry about the paint on my '93 W250 Cummins. I'm not used to that, lol.   https://postimg.cc/mzKr55sY
    • Jsdirt
      What did you do to your "other" car (aka musclecar) today

      By Jsdirt · Posted

      BEAUTIFUL!! That a Cutlass F85? Or 442? My side-ID skills are lacking thanks to failing memory, lol. Love that color & year, too!   Yeah I was never big on entering my own stuff, but I always liked seeing what everyone had, the rare models, and what's been modified. That was always fun. These days I have barely enough time to do what needs to be done at home.    Oddly enough, here in MA there are more car shows than ever in history! You'd think up here it would be dead, but it's bigger than EVER!          Took the 940 for its maiden voyage with the carburetor. At first I couldn't get out of the yard! This originally had the "Bosch" system (our other 940 has Regina - single fuel pump in fuel tank, and space-age-looking ignition coil on driver's fender) - that has dual fuel pumps. One in the tank, and one under the center left of the vehicle. I had unplugged the external one thinking I wouldn't need it with the carburetor ... but the way I have the pressure regulator hooked up, 90% of the fuel volume is going back to the fuel tank, so cranked all the way down, the regulator is only supplying a hair above 3.5 PSI to the carb. Turns out the in-tank pump (15 PSI alone, instead of 45) couldn't handle the load. Plugged it back in and went for a rip. Ran great!   Throttle response is always amazing with carburetors. ZERO delay that no FI system can reproduce. Also fires up in half the crank rotations as before. Low end power was DRAMATICALLY improved. There was an ongoing lean issue with the FI that I got tired of figuring out, so this is a MASSIVE improvement! Above 50 MPH on hills it feels SUPER weak, though. This is more than likely due to the timing not being advanced enough by the computer, since it believes there are multiple failures. I can live with that through the winter. Will keep me from passing slowpokes where I shouldn't and getting speeding tickets at least. 😁

  • GM-Trucks.com Clubs

  • Popular Contributors

×
×
  • Create New...