I'm hoping to find a disc brake setup for a 1970 GS. What donor cars are a direct fit? 1968-1972 Chevelle and Malibu and Monte Carlo 1968-1972 Olds Cutlass and 442 1968-1972 Pontiac Lemans, GTO Will 1973-1975 G bodies fit too? Gran Prix, Monte's, Century/Regal, Cutlass? Any other years or Models that I'm missing? Dave
If you want a complete set-up from a 71 Grand Prix for $400 visit www.classicalpontiac.com Includes booster, master cylinder, prop valve, spindles, calipers, rotors etc.
Actually what you need to do is go the B Body route - bigger better brakes but more importantly dropped spindles which make the handling much much much better. The Chevelles site is a good reference. The B Body spindle is a much beefier unit. You'll need turned down Camaro ball joints to fit the sockets of the A body lower arms and the B spindles and I recommend you get a set of tubular upper arms sicne they're shroter and correct the suspension geormertry from the dropped spindle, otherwise you'll need an inch of shims which won't be good! I putting mine on at the moment and working through it. Good luck with what ever you decide to do regards Nick