recently my old rear end went bye bye and i got a new one its a 3.27 posi disc brakes i belive borg warner out of an 88 trans am and i need to put the oil or grease or whatever u call that stuff, it smells real bad anyway what do i need to put in and how much. i read u also need to put in a special additive cause its a posi. my old rear is like 95% out of the car and plan to put the new one in tmw any help would be great thanks.
thanks
chris

 

clutch type posi require posi additive, gm sells the only one i'll use. there is a fill plug, big rubber thing on cover of 9 bolts, 3/8npt plug with 3/8 square female drive on left side forward of axle tube on 10 bolts. fill it till it runs out the fill hole. the bottle has a fill spout, all i use is the bottle. if the rear is empty it'll take 2 or close to 2. i'd buy 3 because you'll have hard time getting all of it in from the bottle.

 

this is the stuff i bought ...it says on the back "Compatible with limited slip friction modifiers". i assume this is all i have to put in, if not let me know

 

Right, but you still need one (small) bottle GM posi additive, buy it at any GM dealer, they know what you want.

 

yea i have to go the the chevy dealer tmw and get the gasket for the cover plate and i guess i pick up a small bottle of that...do i put that stuff in first? and do i use the whole bottle?

 

Yes, put one bottle in first (it's only 4 us. fl.oz.), some guys here put in two bottles, but I'd say start with one (recommended by GM)
The part nr. for the bottle is: 1052358, Goodwrench Limited Slip Differential Lubricant Additive.

The part nr. for the gasket you need is: 12523445.

BTW, you need at least two bottles axle lubricant , you showed above!!

Good Luck!!

 

yea i got 3 bottles of the lubricant....just in case
thanks for the info