48RE Synthetic Fluid

[JJoiner]

Wanting to change my transmission fluid. Original fluid has 37,000 miles on it and feel its time to change. Also, looking to change rear & front diffs. , and tranfer case. Which synthetic do ya'll recommend. Thanks

 

[RMalone]

I believe for warranty reasons you have to use ATF+4 in the transmission.

 

[jwduke]

I would use ATF-4 in the transmission for warranty reasons, but as for the differentals, Mobil makes some great synthetic lubes, I would use.