Wondering What type, wight and how much gear oil to put in the rear of my 87 gn. Also, whne using synthetic gear oil, is an additive needed? One other thing, is there a gasket from gm for the rear housing on this car, or do i just use rtv sealant?
thanks
The owner's manual has recommendations as to weight and type (Hypoid) of fluid (don't have it in front of me and it might be specific to temperature/climate?)
I personally like the Red Line oil with the posi additive (I have a posi) already mixed in.
I use a gasket that I buy separate (I think it's Fel Pro).
Here's what I have if you go the GM route.
Three - 1052271 (80-90 gear oil)
One - 1052358 additive
Rear Axle Housing Cover Gasket 26066456
Mickey
Nice job Mickey!
Thanks Phil...I've got part numbers I haven't even used yet...LOL