What I mean is are there companies that have better ring and pinion gears than other co.'s? I think I am going to do 3.90's and I didn't know if there was a particular company that people buy gears from.

richmond is a reputable company but there are a lot of good companies.

I believe the actual Ring and Pinion gears for the C5 are all made by the same company.

Are you talking about all aftermarket gears?