Which Diff Cover?
Quick question about the fluid, the guy at O'Riley's gave me three quarts of Royal Purple 75W140 and said that with it I didn't need any additive... Is this alright for the 10 bolt?
For your reference, my car is going to soon be finished with a full Strano suspension with 315's all round... sticky stuff too... so I'll be doing some hard launches and need some reinforcement... Don't tell me to go with a 12 bolt or 9" please... this is an autox car.

