I have a sticker in my glove box that tells me the build codes. Most of it is faded away.

 

I do in fact have the dana 80. It says 10.1 pints of gear oil, and 10 oz of friction modifier. What brand of friction modiier should i get? Im geting the valvoline 80w-90

 

Get it from the dealer that way you know you have the right stuff

 

What fireman said. Mopar additive. And before you it up what I like to do is flush it out persay with a little extra fluid.

Sent from my DROID BIONIC

 

Im buying regular valvoline 80w-90because the durablend is mixed i think.. Ill just get the mopar additive then

 

Yup yup:thumbup:

Sent from my DROID BIONIC

 

Gotta see what the dealer will charge for it.. Probably an arm and a leg for 10 oz

 

Cant get a straight answer from anyone i talk to. Now apparantly they say valvoline 80w-90 in the white bottle which is 100% non synthetic also has friction modifier. Valvoline told me it has 4 oz per qt, which will mean ill have 20 oz of friction modifier in my differential when i only need 10 oz. i think im on a journey to wasting all kinds of money on crap i dont need. Dodge dealership still says ad mopar friction modifier, but wont that make it way too much?

Im about to say to hell with it and leave the dirty oil in there