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47-59 Chevy Pickup Disc Brakes

1947-59 Six-Lug Complete Power Disc Brake Kit
click to enlarge Our 6-lug disc brake kit contains all you'll need to put modern discs on your stock 1/2 ton spindles, and uses your stock hub. The 1-1/4" thick, 12" rotor uses a GM full-floating caliper. The 8" single diaphragm booster master cylinder and proportioning valve mounts in the stock location. Some stock wheels may rub the caliper, it may be necessary to use a spacer (kits come with one pair of spacers). May not work with some stock wheels. Also, 1947-50 trucks may need to drill out lower spindle hole from 7/16" to 1/2". Drilled/slotted rotors optional.
Note: We recommend that you upgrade the stock ball bearings to tapered roller bearings when using this kit. Frame mount brake boosters may require #CP9424 transmission mount.
Part No. Description / Application RJay's Buy It!
CPP4954CBK-6 '1947-'54 6-Lug Complete Power Disc Brake Kit
12" Smooth Face Rotors
$699.00
CPP4954CBK-6DS '1947-'54 6-Lug Complete Power Disc Brake Kit
12" Drilled / Slotted Rotors
$779.00
CPP5559CBK-6 '1955-'59 6-Lug Complete Power Disc Brake Kit
12" Smooth Face Rotors
$699.00
CPP5559CBK-6DS '1955-'59 6-Lug Complete Power Disc Brake Kit
12" Drilled / Slotted Rotors
$779.00
CPP4959WBK-6 '1947-'59 6-Lug Wheel Only Kit
12" Smooth Face Rotors
Same as above kits minus booster
$369.00
CPP4959WBK-6DS '1947-'59 6-Lug Wheel Only Kit
12" Drilled / Slotted Rotors
Same as above kits minus booster
$449.00
CPP4959WSK '1947-'59 3/16" Wheel Spacers (pair).
(One set included with above brake kits)
$25.00
CPP4759RBKU '1947-'59 Tapered Roller Bearing Upgrade
(Must be ordered with above kits)
$90.00


1947-59 Roller Bearing Conversion Kit
click to enlarge Convert your original ball bearings to modern tapered roller bearings. Tapered bearings disperse heat better and can deal with today’s grooved roads and modern wheels and tires much better than the original ball type. Highly recommended for use with our 6-lug disc brake conversion kit.
Part No. Description / Application RJay's Buy It!
CPP4759RBK '47-'59 Roller Bearing Conversion Kit $95.00


1947-59 GM 5 on 4 3/4" Bolt Pattern Complete Disc Brake Kit
click to enlarge 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 our most popular upgrade for 1947-59 trucks. Includes 1" thick 11" diameter rotors, tapered roller bearings, hoses, master cylinder, booster, and proportioning valve.
Note: 1947-50 trucks may need to drill out lower spindle hole from 7/16" to 1/2". Both factory 6-lug and our 5-lug kit have 7/16" dia studs. Frame mount brake boosters may require #CP9424 transmission mount.
Part No. Description / Application RJay's Buy It!
CPP4754CBK-5 '47-'54 5-Lug Complete Power Disc Brake Kit
11" Smooth Face Rotors
$699.00
CPP4754CBK-5-DS '47-'54 5-Lug Complete Power Disc Brake Kit
11" Drilled / Slotted Rotors
$779.00
CPP5559CBK-5 '55-'59 5-Lug Complete Power Disc Brake Kit
11" Smooth Face Rotors
$699.00
CPP5559CBK-5-DS '55-'59 5-Lug Complete Power Disc Brake Kit
11" Drilled / Slotted Rotors
$779.00
CPP4759WBK-5 '47-'59 5-Lug Wheels Only Kit
11" Smooth Face Rotors
Same as above kits minus booster
$375.00
CPP4759WBK-5 '47-'59 5-Lug Wheels Only Kit
11" Drilled / Slotted Rotors
Same as above kits minus booster
$455.00


1947-59 5 on 4 3/4" Bolt Pattern Disc Brake Bracket Kit
click to enlarge

Convert your straight axle truck to disc brakes with our bolt-on disc brake bracket kit. Our kit is a true bolt-on using the factory holes on the 1/2 ton spindle. Kit includes caliper brackets, bearing adapters and mounting hardware. Uses 1970-77 Camaro rotors and calipers.
(Bearing kit #CPP4759BK recommended).

Part No. Description / Application RJay's Buy It!
CPP4759DBK-5 '47-'59 5-Lug Disc Brake Bracket Kit $95.00


5 Lug Bearing Kit
click to enlarge

Kit includes inner and outer bearings and grease seals. A must when converting to 5-lug disc brakes. (Use with #CPP4759DBK-5).

Part No. Description / Application RJay's Buy It!
CPP4759BK '47-'59 5-Lug Bearing Kit $30.00


Performance Brake Rebuild Kit
click to enlarge

Includes Drilled/Slotted Front Rotors, Heavy-Duty Disc Pads, Bearings and Seals. (Seals not included with #4759BRK-6).

Part No. Description / Application RJay's Buy It!
CPP4759BRK-5 '47-'59 5-Lug Performance Brake Kit $199.00
CPP4759BRK-6 '47-'59 6-Lug Performance Brake Kit $179.00



530 Daniels Rd / Cuba, MO 65453
Monday-Friday 8:00am to 5:00pm CST / Saturday 9:00am to 2:00pm CST
Contact RJay's Speed Shop
Phones: e-mail:
Toll Free: 1-800-222-4004 Tech/Parts Questions
Phone: 1-573-885-4005 Order Inquiries
Fax: 1-573-885-2130 RJay hiself

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Reproduction of any material prohibited without written permission.

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