Perro,
Trade the nice set of Boyd's for a nice set of something else that will fit your existing bolt pattern.
Replacing the rotors and redrilling the rear axles & drums would probably be cost prohibitive.
Fred

Last edited by rfs56trk; 11/10/2007 5:51 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