GM 5 on 4-3/4″ Bolt Pattern Brake Kit Our 5-lug disc brake kit not only upgrades your brakes, but swaps the factory 6-lug pattern to the common GM 5 on 4-3/4″ bolt pattern. The kit is complete, bolts onto the stock spindle and does not use stock hubs. This is a very popular upgrade for 1947-59 trucks.
Includes Brackets, 1″ thick 11″ diameter rotors/hubs, tapered roller bearings, hoses, master cylinder, booster with proportioning valve and hardware.
1947-50 trucks may need to drill out lower spindle hole from 7/16″ to 1/2″. Note: Both factory 6-lug and our 5-lug kit have 7/16″ dia studs.
Frame mount brake boosters may require #CP9424 transmission mount or alteration to yours.
1947 – Early 55 Chevy / GMC Truck 5 on 4-3/4″ Complete Front Brake Kit Upgrade – w/Booster Assembly
$650.00 – $750.00
Includes 1″ thick 11″ diameter rotors, tapered roller bearings, hoses, master cylinder, booster, and proportioning valve.
Note: kit shown with optional upgrade drilled/slotted rotors.

Proposition 65 Warning Required Per California Law
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