POL - 12" Rear Disc Brake Conversion, 1964-66 Ford 8"/9" Small Bearing, Baer Track 4 Hydropower Power Brake Boosters 1968-79 Chevy Nova Pontiac Ventura These are the first drop

These are the first drop spindles to hit the industry back in 1981

To install

5" or 3" size for 4

Works with Chevy small and big block engines

Rear brake line fitting port is 7/16-20 (1/4" brake line standard)

POL - 12" Rear Disc Brake Conversion, 1964-66 Ford 8"/9" Small Bearing, Baer Track 4 Hydropower Power Brake Boosters 1968-79 Chevy Nova Pontiac Ventura These are the first dropPOL 12" Black Out Track 4, rear disc brake conversion by Baer takes your braking performance to the next level. This system features the Track 4 aluminum 4 piston caliper mounted to a 12" drilled and slotted black zinc 1 piece rotor. The Track 4 caliper has D. O. T compliant dust and weather seals and uses the DR1 or HB100 pad. The unique billet backing plate not only acts as the brake caliper mount, it houses a modern 1 piece parking brake shoe