GM Rear Disc Brake Conversion Kit
1964-1972 GM A-Body Premium Kit Non E-Brake Includes: 11 in. Cross-Drilled/Slotted Rotors w/ 5 x 4.750 in. & 5 x 4.500 in. Dual Bolt Patterns Raw Calipers See Special Note Below JEGS 630612 GM 10 & 12 Bolt Rear Axle Disc Brake Conversion Kit with cross-drilled and slotted rotors without e-brake is an easy bolt-on solution for upgrading your GM rear-end to disc brake performance. This kit is designed for GM rear axles with coil springs and shocks that mount on the backside of the axle housing.
Note:
Will NOT Fit These Applications: Axle Flange is too large to fit into the hat of the rotor. See the above dimensions before ordering. 1964-1965 LeMans, Tempest & GTO 1964-1972 Skylark & GS 1970-1974 LeMans, Tempest, GTO, Cutlass & 442 Maximum Axle Flange Face Diameter of 6.11 in. with 2.786 in. Maximum Hub Register to fit Rotor Hat. 0.050 in. x 45-degree Chamfer How To Measure Rear Axle Hub Flange & Register Dimensions
For Applications with Both Shocks Behind the Rear Axle Housing The installation of disc brakes will require the use of 15 in. wheels. Any attempt to install disc brakes with 14 in. wheels will be the customer’s responsibility Does Not Fit S-10 Chassis, Truck Frames This kit Requires a disc/disc proportioning valve. JEGS recommends 555-63025. JEGS recommends a 1.125 in. large bore master cylinder like 555-631403 when adding disc brakes. Kit Includes:
(1 Set) Loaded Raw Calipers Left/Driver Side and Right/Passenger Side, includes D54 Pads, and Mounting Hardware (2) Hubless 10 Hole Cross-Drilled & Slotted 11 in. Rotors (Dual lug pattern 5 x 4.500 in. and 5 x 4.750 in.) (2) 10mm Stainless Steel Brake Hoses (2) 10 mm Banjo Bolts (4) 10 mm Copper Washers (6) 3/8-24 x 50 Bolts (6) 3/8-24 Lock Nuts (6) 20 x 10.5 x 2 Washers (2) Brake Hose Clips (1 box) Left/Driver Side & Right/Passenger Side Caliper Brackets (6) Shims (2) Brake Hose Mounting Tabs (2) Square Backing Plates/Axle Flanges
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