GM A-Body 9" Rear Housing Suspension Bracket Kit - Late 1967-'72 These Speedmaster crankshafts are precision-ground

These Speedmaster crankshafts are precision-ground and micro-polished to exacting tolerances

which allow you to modify your cam timing

thanks to its exceptional race-proven performance both on and off the track

Speedmaster has redesigned the power gear sets to incorporate six pinion gears--unlike a stock 3-pinion style--to increase their load-handling characteristics by 100 percent

or working on your current shifter assembly

GM A-Body 9" Rear Housing Suspension Bracket Kit - Late 1967-'72 These Speedmaster crankshafts are precision-groundSpeedmaster bracket kit works for late '67 '72 GM A body cars such as Chevelle, Monte Carlo, Cutlass, Skylark, GTO Lemans with domed style spring pads. Kit includes upper control arm brackets with greasable rod ends installed, coil spring perches for the tops of the tubes, lower control arm mounts, urethane bump stops, and separate shock mounts that are not incorporated into the control arm mount so that they may be in boarded for tire clearance.