2019 Chassis Swap with 2015

mikeyk101 · 2024-11-24T18:20:02Z

Unfortunately I don't but maybe @newdude will be along and have that answer.

Jeff1978 · 2024-11-24T18:55:17Z

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

Edited 23 hours ago by Jeff1978

mikeyk101 · 2024-11-24T20:05:42Z

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.

Homewrecker007 · 2024-11-25T11:39:24Z

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.

mikeyk101 · 2024-11-25T13:23:31Z

1 hour ago, Homewrecker007 said:

3.08 is the other one.

Yup, that's it!

newdude · 2024-11-25T16:25:55Z

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

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 6 hours ago by newdude