What is the recommended wts for the axles, transfercase, and tranny. I have a 96 PSD and believe it has the E40D. I'm looking to switch to synthetic and the truck didn't come with an owners manual. Thanks for the help. By the way, I was getting some hose at Advanced Auto the other day and they are running a sale on Shell Rotella T until the end of March

 

The E4OD uses MERCON V ATF.

 

I use Schaeffer's all trans and Schaeffer 7000 for the motor.

 

I use Super S synthetic 75-140

 

Thanks guys!

 

Schaefers makes a great product.

The Rotela full snyth is decent as well.

also for a decent product, there is AMS oil and a few other good full snyths out there.

Just do some quick research on ratings and you'll be all set.