will a series 3 differential from a 1980 307:1 gear fit into a 1981 batwing?, am i able to change those 307 gears to a 391?
I have a 1981 vette with stock 287:1 rear end gears, would like to use a 1980 differential with stock 307:1 gears (3 series) and put in 392:1 gears. will this work?