Gear oil

[Regjackson1]

What is thee correct oil you need for the rear differential, transfer case and front differential

 

[OR VietVet]

Welcome to the forum from Oregon.

Personally, I stick with what my owner's manual says to use and that can also supply part numbers that you can cross, if you wish.

By the way, it always helps to post info for what truck you are asking about. Or, is it a secret?

 

[Regjackson1]

Welcome to the forum from Oregon.

Personally, I stick with what my owner's manual says to use and that can also supply part numbers that you can cross, if you wish.

By the way, it always helps to post info for what truck you are asking about. Or, is it a secret?

No secret lol 2002 Yukon xl 1500 4x4

 

[OR VietVet]

No secret lol 2002 Yukon xl 1500 4x4

If you slap that info in your signature, it is there every time you post or respond.

 

[Blackcar]

I this link on page 426 and 427 will have recommended fluid (7-24 7-25)

https://www.dezosmanuals.com/wp-content/uploads/2021/07/2002-GMC-Yukon-XL.pdf