Product Summary

Front Position, 10.50 Inch Rotor Diameter

  • 1955-57 Chevy Dropped Spindle Disc Brake Conversion Kit with master cylinder and 8" dual brake booster includes everything needed to upgrade your braking system
  • Dropped spindles will not only enhance the rake of your Tri-Five Chevy, they will also improve handling due to the lower roll center
  • Dropped spindles maintain factory steering & suspension geometry so original steering arms can be used
  • Premium 10-1/2" GM vented brake rotors for excellent stopping power and fade free performance
  • Includes D154 Wilwood Calipers, brake pads, slide bolts, new bearings, seals, and brake hoses

Comes as a Kit

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Key Specs

MFG. Part #9100300
PositionFront
Wheel Bolt Pattern (in.)5x4.75 in.
Wheel Bolt Pattern (mm)5x120.65 mm
Rotor Diameter10.50 Inch
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Speedway Motors 9100300 Details

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) 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) 55-57 Fullsize Chevy Brake Booster Conversion Kit, 1 In Bore, Zinc

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:

 

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

  • Dual-piston D154 calipers
  • Dual piston
  • 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 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

  • 2.00" x 2.56" x .234"

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.

55-57 Fullsize Chevy Brake Booster Conversion Kit, 1 In Bore, Zinc

  • Easily convert your manual braking system and add some power on your 1955-1957 fullsize Chevy with little to no modifications!
  • Comes complete with brake booster, master cylinder, and booster bracket
  • Detailed instructions are also included for a seamless install
  • 1955-1957 Fullsize Chevy
  • 8" Dual Power Brake Booster
  • 1" bore master cylinder
  • Zinc

Kit Includes:

  • 8" Dual Power Brake Booster
  • 1" Bore, Cast Iron Master Cylinder
  • Disc Drum Proportioning Valve Kit
  • Booster Brackets
  • Clevis
  • Pedal Rod Extension

Specs

Kit Includes:

  • 8" Dual Power Brake Booster
  • 1" Bore, Cast Iron Master Cylinder
  • Disc Drum Proportioning Valve Kit
  • Booster Brackets
  • Clevis
  • Pedal Rod Extension

Speedway Motors 9100300 Specifications

KEY SPECS
MFG. Part #9100300
BrandSpeedway Motors
PositionFront
Wheel Bolt Pattern (in.)5x4.75 in.
Wheel Bolt Pattern (mm)5x120.65 mm
Rotor Diameter10.50 Inch
Rotor TypeVented
Caliper PistonsTwo
Caliper FinishPowder Coated
Parking Brake ProvisionNo
Minimum Recommended Wheel Diameter15 Inch
Rotor ShapeRound
Hardware IncludedYes
Rotor StylePlain Face
Spindle TypeDrop Spindle
Front Rotor IncludedYes
Front Rotor Diameter10.50 Inch
Front Caliper IncludedYes
Rear Caliper IncludedNo
Front Spindles IncludedYes
Master Cylinder IncludedYes
Brake Booster IncludedYes
Brake Hoses IncludedYes
Rear Rotor IncludedNo
Bolt Pattern5 on 4.75"
FinishPowder Coated
Mounting Bracket IncludedYes
Proportioning Valve TypeFixed
Front Caliper Piston QuantityTwo
Front Caliper FinishPowder Coated
GENERAL
Sold in QuantityKit
Rotor Thickness1.04"
Centerline of Holes5.5"
Front Suspension TypeIFS
Brake Pad CompoundD154
Rotor Material TypeCast Iron
Front Caliper MaterialAluminum
Brake Booster Diameter8 Inch
Brake Booster MaterialSteel
Brake Booster TypeVacuum Diaphragm Dual
Master Cylinder Bail TypeDouble Bail Wire Zinc Lid
Master Cylinder Bore Size1 Inch
Master Cylinder FinishNatural
Master Cylinder MaterialCast Iron
Master Cylinder Port Sizes9/16-18" & 1/2-20"
Caliper Material TypeAluminum
Piston Diameter2"
Proportioning Valve LocationLeft Mount
Brake Booster Bracket FinishZinc
Brake Booster FinishZinc
Brake Pedal Rod IncludedYes

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5.0

9 months ago

Sam

Sacramento

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Very good product

Would Recommend

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