what weight do you use?

 

Nevermind...found in in the chiltons, but just for search purposes the oil to use is

"Hypoid gear oil SAE 75W-85W or 75W-90W when conforming to API specifications GL-4 or higher"

 

For AT tranny's plymouthlaser.com suggests: As for Tranny fluid, I used Mitsubishi Diamond ATF up until the shift kit. The OEM fluid is more expensive (surprise surprise) than B&M TrickShift. So, I picked up a bunch from PepBoys and use it only. Its hard to tell which fluid is better due to the fact the shift kit was put in at the same time, which of course makes it feel better.

 

i use royal purple 75w90

 

while were on the subject how often should you put transmission fluid in a manual???