Upgrade your Tri-Five Chevy's handling and stopping power with drop spindles and brakes you can count on, all while staying on a budget.
Kit Includes:
- (1) Pair of 1955-57 Chevy 2" Drop Spindles
- (1) Pair of 1955-57 Caliper Brackets
- (1) Bolt Kit for 1955-57 Drop Spindle to Caliper
- (2) 1979-1981 GM Midsize 10 1/2 Inch Disc Brake Rotors
- (1) Wilwood D154 LH Brake Caliper, 7/16-20 Inlet
- (1) Wilwood D154 RH Brake Caliper, 7/16-20 Inlet
- (1) Set of Speedway Soft Street Brake Pads, GM Metric 1978-Up D154
- (2) Speedway Replacement Inner Seals
- (2) Inner Wheel Bearing Cones
- (2) Outer Wheel Bearing Cones
- (1) Spindle Nut Kit for Speedway GM Spindles
- (1) Front Disc Brake Hardware Kit
- (1) GM/Corvette Cast Iron Master Cylinder, 1 Inch Bore
- (1) GM Disc/Drum Proportioning Valve for 3/8-24 Outlets
Learn more about the products chosen and why we recommend them for your Tri-5 Chevy, here:Drop Spindle Install and Disc Brake Conversion on a 55 Chevy
1955-57 Chevy 2" Drop Spindles, Aftermarket Disc Brake Kit
- 1955-57 Chevy 2" dropped spindles for use with aftermarket disc brake conversion kits
- 2" drop built in
- Cannot be used with stock drums or brake conversion for stock type spindle
- Completes both sides
- Maintains factory steering and suspension geometry
- Track width is increased over stock O/E front end width by 3/4" overall or 3/8" per side
Ideal for use in conjunction with the following Wilwood brake kit for Heidts Tri-5 drop spindle application:
1955-57 Caliper Brackets
- These caliper brackets have a zinc finish
- Steel design is engineered for quality as well as durability
- .38" material thickness
Foundry
Bolt Kit for 1955-57 Drop Spindle to Caliper
- Use these bolt kits to mount your drop spindle conversion to calipers
- Designed for use with 1955-57 Chevy
1979-1981 GM Midsize 10 1/2 Inch Disc Brake Rotors
- 10-1/2" rotors (O.E. on 1979-81 GM Midsize: Malibu, Monte Carlo, Cutlass, Regal, etc.)
- 5 x 4-3/4" bolt pattern
Wilwood D154 LH/RH Brake Calipers, 7/16-20 Inlet
- Wilwood D154 dual-piston calipers
- No core charge required
- 7/16"-20 inlet
- 5-1/2" Mount Spacing
- Can be usedwith brake hoses from Pre-1978 GM intermediate cars
- UtilizesGM metric style D154brake pads
Speedway Soft Street Brake Pads, GM Metric 1978-Up D154
- Speedway soft brake pad for D154 Wilwood calipers
- One set outfits two calipers
- Tech Tip: Only use full metallic pads on coated rotors
Learn how to properly Bed-In your brake pads by reading our tech article. Bedding-In Brake Pad Procedure.
Speedway Replacement Inner Seals
Spindle Nut Kit for Speedway GM Spindles
- Includes a pair of castle nuts, washers and cotter pins
- Castle Nut: 3/4"-20 (not SAE, which is 16 TPI)
- Overall Height: 0.505"
- Height up to the bottom of the castellated notch: 0.276"
- Wrench size for nut: 1.00"
These dimensions are approximate. Certain brake kits may require removal of some of the nut material to allow for installation of the cotter pin.
GM/Corvette Cast Iron Master Cylinder, 1 Inch Bore
- High-tech Corvette-stylemaster cylinders designed using OE specifications and 100% tested
- The wide body and low profile gives this master cylinder the clearance you need when installing in tight areas and yet it maintains a large volume of fluid necessary for 2 and 4 wheel disc brake applications
- 1" bore
- Has 9/16" and 1/2" ports on both sides of the master cylinder
- Works with power or manual brake systems
- Suited disc/drum combinations
- Has a piston adaptor that will allow for power or manual applications
Learn more about selecting the proper master cylinder for your vehicle by reading our tech article.Brake System Selection.
GM Disc/Drum Proportioning Valve for 3/8-24 Outlets
These proportioning valves are similar to what GM used on many cars in the 70s.
- Non-adjustable and may require an adjustable valve in the rear brakes (if needed)
- Block incorporates metering (for front brakes) and proportioning (for rear brakes) into one unit
- For use withfront disc, rear drumbrake systems
- Includes hard lines to connect to a master cylinder with 3/8"-24 outlets
Notes:
- Bottom Front Port: 3/8"-24 IFF threads - goes to one front brake
- Top Front Port: 3/8"-24 IFF threads - goes to one front brake
- Middle Top Port: 1/2"-20 IFF threads - comes from master cylinder
- Rear Top Port: 7/16"-24 IFF threads - comes from the master cylinder
- Rear Most Port: 9/16"-18 IFF threads - goes to rear brakes
