1965-1968 GM Full Size (Impala, Bel Air) 8" Dual Zinc Booster Conversion Kit w/ Cast Iron Master Cylinder Left Mount Disc/ Drum Proportioning Valve Kit Trigger Wheels - Trigger Wheels but its toughness actually smoothes

but its toughness actually smoothes the journals of a crank whose surface hasn't been optimized

Large GM Large Bore Single Piston Calipers w/ Self Adjusting E-Brake (1979 Cadillac El Dorado)

GM Universal Combination Valve Disc/Drum Brass

Black Powder Coated Finish

GM 7" Large Single Piston Powder Coated Black  Caliper Set

1965-1968 GM Full Size (Impala, Bel Air) 8" Dual Zinc Booster Conversion Kit w/ Cast Iron Master Cylinder Left Mount Disc/ Drum Proportioning Valve Kit Trigger Wheels - Trigger Wheels but its toughness actually smoothes1965 1968 GM Full Size (Impala, Bel Air) 8" Dual Zinc Booster Conversion Kit Cast Iron Master Cylinder Left Mount Disc Drum Proportioning Valve Kit