Does anybody know how much bottles I need or the weight for a moser 9" rearend -35 spline axles and Posi unit. I wanted to buy the red line sythentic stuff. Also do I need to add the bottle of GM rear differential additive. Never really changed it before. - Any info would help

 

takes about 2 1/2 to 3 quarts regular gear oil.no need for additive.

 

Moser recommends non synthetic gear oil, and states that the use of synthetic oil will void any type of warranty. FYI... Bob

 

They will also void your warranity if you tell them you broke yor axle while racing.