Chevy cars were the only ones that used the 4 3/4 bolt pattern
in that era. However, the rear drums should be the same up through 64 on full size cars. Chevelle's, GTO's and other "A" body cars had the same bolt pattern but used 10" brakes.
Fred

Last edited by rfs56trk; 06/01/2010 11:32 PM.

1956 3100 Pickup/Red/350/3sp OD/PS/Disc Brakes
1957 Bel Air Sport Coupe/Red/355/TH350/PS/Disc Brakes
2017 Silverado LT Single Cab SB/Black/5.3/6 Speed Trans
1947 Willys CJ2A w/F-Head engine