does the 68-70 Buick 8.2 rear use the same series carrier for 3.23 and 3.42 ratios? the carrier i am refering to has the two different size carrier bearings
Your running a 68 rear in your 65? I know the 66 rear has four different carrier "breaks" and the 3.23 unit will not accept anything steeper. Do you have any clearance issues (wheels) with a wider rear?
Frank my 65 has the original 3.08 posi in it. no clearance issues there, i'm running a 275/60/15 tire on a factory 15 inch rally wheel with no problems. Bob