My 89 GM 10 bolt 8.5 inch rear has 2.73 gears in it. I want to put at least 3.73 ratio gears in it but not sure if the original carrier will need to be changed. I havent dealt with the 10 bolts much but know the old Chevelle 12 bokts used two different carriers depending on what ratio gears were used. Whats the lowest ratio (3.73, 4.10, 4.56, etc.) that I can use on a 2.73 carrier?
Thanks.
Thanks.