slinkypete
Full Access Member
Hi, would someone Please tell me the pinion factor that needs to be updated in the computer for my tire size change to 305/45zr22 tires. I just bought a set of Continental cross contacts from Summit and want my speedometer to be accurate. I saw the info on this site but can't find it again. I would appreciate the help and thanks in advance. Summit was the only place i could find a z speed rated tire this size. IMO they look way better than the 305/40/22's.