2021 Rebel Rear Diff - How do I tell if I have Max Tow or not?

[NorCalxRebel]

Hello everyone,

New member here! I am getting ready to change the rear diff fluid (50K) and was wondering how does one tell if they have a Max Tow package or not.
Dealership THINKS I have the limited rear slip and require 4.23pints of 75w-140w, but he also said if I have Max Tow then it will require 80w-90w

Thanks in advance for all the help!

 

[DEG]

Your owners manual will tell you what fluid to use.

If you don't know whether or not you have and anti-spin rear axle you can plug your vin number in at this site and get your build sheet. If it doe not list "anti-spin" or limited slip then you don't have it.

 

[Scram1500]

Rebels only come equipped with 3.92 and electronic rear locker

 

[Sascwatch]

Rebels only come equipped with 3.92 and electronic rear locker

Yep, this is correct.

You will need a few quarts of 75w-140 for the rear diff. No friction modifier is required in the rebel.

Front diff is 75w-85 but 75w-90 will work just fine.

Transfer case fluid is hard to locate in small volumes, so the dealer is the best option for that fluid.

 

[NorCalxRebel]

I am considering Mobile 1 Synthetic 74w 140 for the rear and 75w-90w for the front diff.

Both say LS included, is that OK?

 

[Chris3058]

LS is fine in a non LS diff....the other way is what causes issues.