GMC 300 Brakes

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GMC 300

Products

Wilwood |

#83526013784

Wilwood 260-13784 Red 10 PSI Residual Pressure Valve with Fittings

(26)

Pressure Rating:

10 psi

Inlet Fitting:

3/8"-24 I.F. Female

Outlet Fitting:

3/8"-24 I.F. Female

$25.99

/each

Dual 7 Inch Brake Booster Master Cylinder Combo, 1-1/8 Inch Bore

Speedway Motors |

#91031412

Dual 7 Inch Brake Booster Master Cylinder Combo, 1-1/8 Inch Bore

(18)

Brake Booster Diameter:

7 Inch

Master Cylinder Material:

Steel

$260.99

/kit

Dual 8 Inch Brake Booster Master Cylinder Combo, 1-1/8 Inch Bore

Speedway Motors |

#91031414

Dual 8 Inch Brake Booster Master Cylinder Combo, 1-1/8 Inch Bore

(13)

Brake Booster Diameter:

8 Inch

Master Cylinder Material:

Steel

Master Cylinder Finish:

Natural

$250.99

/kit

Under-Floor Universal Brake Pedal and Booster Kit

Speedway Motors |

#9100982

Under-Floor Universal Brake Pedal and Booster Kit

(3)

Brake System Type:

Disc/Drum

Reservoir Type:

Integral

$422.99

/kit

GM Disc/Drum Proportioning Valve for 3/8-24 Outlets

Speedway Motors |

#91031364

GM Disc/Drum Proportioning Valve for 3/8-24 Outlets

(36)

Proportioning Valve Type:

Fixed

Port Quantity:

3-Port

Material Type:

Brass

$118.99

/each

Built With Speedway Motors: Dan's 1935 Maple Leaf

Dan's unique truck from north of the border is loaded with family history!

Best Brake Boosters for Better Braking

Power brake boosters offer lower pedal effort and better braking characteristics, but which one is right for your hot rod, muscle car, or truck? We take the guesswork out of that question with our latest buyer's guide.

GM Rally Wheels

Choosing new wheels for a GMC Chevrolet truck. This project uses Speedway Motors GM Rally Wheels and new tires to enhance the appearance of the truck.

Brakes - 410 Sprint Car Build

Check out the 410 sprint car brake installation and bleeding the brakes! We're making serious progress on our build.

Manual Brake Bleeding

Manual brake bleeding can be one of the most efficient ways to bleed the air out of your brake lines. Speedway Motors has created a guide to show you step-by-step how to manually bleed your brakes.

Drum Brake Installation - '32 Roadster

Finned Aluminum "Buick Style" Brake Drums are a great way to add that vintage hot rod style to your Early Ford. Follow along as we install a pair on our '32 Roadster and add some serious hot rod attitude!

Brake Kit Fitment

So many brake kits. So many options. Take a breath and click here.

Disc Brake Conversion

How to change brake pads, rotors and calipers using the Mustang II complete brake kit. Replace your drum brakes with disc brakes for performance and better braking ride. For use on Bobcat and Mustang II spindles.

Gravity Bleeding Your Brakes

Sometimes manually bleeding your brakes isn't the best option for you. In this case you can also take a look at our guide on how to gravity bleed the brake system.

Brake Lines/Motorplate Installation - 410 Sprint Car Build

Learn how to install the floor plan, brake lines, and motorplate in a 410 sprint car as we launch our 410 Sprint Car Build.

Universal Fit Firewall Mount Clutch/Brake Pedal Assembly

Speedway Motors |

#91631992

Universal Fit Firewall Mount Clutch/Brake Pedal Assembly

(12)

Material Type:

Steel

Finish:

Zinc Plated

$189.99

/each

Speedway Universal Under-Dash Brake Pedal Mount Bracket

Speedway Motors |

#9106004

Speedway Universal Under-Dash Brake Pedal Mount Bracket

(47)

Position:

Underdash Mount

Material Type:

Steel

Finish:

Powder Coated

$111.99

/each

Under-Dash Brake Pedal Assembly, Single Diaphragm

Speedway Motors |

#9106001

Under-Dash Brake Pedal Assembly, Single Diaphragm

(42)

Brake System Type:

Disc/Drum

Master Cylinder Bore Size:

1 Inch

Reservoir Type:

Integral

$235.99

/each

Universal Fit Firewall Mount Brake Pedal Assembly

Speedway Motors |

#91631991

Universal Fit Firewall Mount Brake Pedal Assembly

(26)

Position:

Firewall

Master Cylinder Mount Type:

Forward

Material Type:

Steel

$205.99

/each

Replacement 11-1/4 Inch Rear Brake Rotor

Speedway Motors |

#91031039

Replacement 11-1/4 Inch Rear Brake Rotor

(22)

Rotor Diameter:

11.25 Inch

Rotor Style:

Plain Face

Rotor Material Type:

Cast Iron

$77.99

/each

Braided Stainless Steel DOT Brake Lines & Rear Brake Hoses 3/8-24

Speedway Motors |

#9101292

Braided Stainless Steel DOT Brake Lines & Rear Brake Hoses 3/8-24

(9)

Brake System Type:

Disc

Brake Hose Length:

16"

$105.99

/kit

Under-Dash Brake Pedal Mount w/Booster & Master Cylinder

Speedway Motors |

#9102687

Under-Dash Brake Pedal Mount w/Booster & Master Cylinder

Position:

Underdash Mount

Material Type:

Steel

Finish:

Powder Coated

$289.99

/kit

Speedway Motors |

#91031842

12" Braided Stainless Steel Brake Line

(48)

Brake Hose Length:

12"

Brake Hose Material:

Teflon | Stainless Braid

Sold in Quantity:

Each

$22.99

/each

Stainless 48 Inch Brake Line with 90 Degree End

Speedway Motors |

#91031895

Stainless 48 Inch Brake Line with 90 Degree End

(17)

Brake Hose Length:

48"

Brake Hose Material:

Teflon | Stainless Braid

Sold in Quantity:

Each

$32.99

/each

Speedway Motors |

#91031851

Braided Stainless AN 60 Inch Brake Line

(23)

Brake Hose Length:

60"

Brake Hose Material:

Stainless Steel Braided

Sold in Quantity:

Each

$32.99

/each

Dual Diaphragm Power Brake Booster, 8 Inch, Chromate Finish

Speedway Motors |

#91031435

Dual Diaphragm Power Brake Booster, 8 Inch, Chromate Finish

(26)

Outside Diameter:

Material Type:

Steel

Finish:

Zinc

$160.99

/each

Aluminum Wheel Spacer, 1/4 Inch Thick, Black Anodized

Speedway Motors |

#91658230

Aluminum Wheel Spacer, 1/4 Inch Thick, Black Anodized

(22)

Overall Thickness:

0.25"

Bolt Pattern:

Multi: 5 on 5" | 4.75" | 4.50"

Material Type:

Aluminum

$25.99

/each

Universal Polished Aluminum Large Brake Pedal Pad

Speedway Motors |

#9118500

Universal Polished Aluminum Large Brake Pedal Pad

(36)

Material Type:

Aluminum

Sold in Quantity:

Each

$35.99

/each

Stainless Steel Brake Hose Kit, D52 Caliper with Banjo, 12 Inch

Speedway Motors |

#9108123

Stainless Steel Brake Hose Kit, D52 Caliper with Banjo, 12 Inch

(5)

Brake Hose Length:

12"

Brake Hose Material:

Stainless Steel Braided

$71.99

/kit

Speedway Motors |

#91021802

Speedway Floor Mount E-Brake Boots

(42)

Hardware Included:

Yes

Color:

Black

$29.99

/each

Aluminum Master Cylinder w/ Stainless Bore

Speedway Motors |

#91031428

Aluminum Master Cylinder w/ Stainless Bore

(39)

Master Cylinder Bore Size:

1 Inch

Master Cylinder Material:

Aluminum

Finish:

Natural

$167.99

/each

Speedway Motors |

#9107977

Speedway Motors Brake Proportioning Valve Kit With Fittings

(3)

Proportioning Valve Type:

Knob Adjustable

Port Quantity:

2-Port

Material Type:

Brass

$71.99

/kit

18 Inch Braided Stainless -3AN Brake Line Kit, 3/8 Inch or 10mm

Speedway Motors |

#9108685

18 Inch Braided Stainless -3AN Brake Line Kit, 3/8 Inch or 10mm

Brake Hose Size:

-3 AN

Brake Hose Length:

18"

Brake Hose Material:

Teflon | Stainless Braid

$64.99

/kit

Stainless Steel -3 AN Brake Line Kit, 3-Hose, 20 Ft. Tubing

Speedway Motors |

#6178530

Stainless Steel -3 AN Brake Line Kit, 3-Hose, 20 Ft. Tubing

(5)

Material Type:

Stainless Steel

Overall Length:

20 ft.

AN Size:

-3 AN

$358.99

/each

Single Diaphragm Power Brake Booster, 7 Inch, Chromate Finish

Speedway Motors |

#91031430

Single Diaphragm Power Brake Booster, 7 Inch, Chromate Finish

(15)

Outside Diameter:

Material Type:

Steel

Finish:

Zinc Plated

$156.99

/each

Speedway Deluxe 37-Degree Brake Line Turret-Style Flaring Tool

Speedway Motors |

#91170084

Speedway Deluxe 37-Degree Brake Line Turret-Style Flaring Tool

(1)

Degree of Taper:

37 degree

Bubble Flare:

Yes

Double Flare:

Yes

$220.99

/each

Speedway Removable Brake Line Retaining Tab for Rubber Hose

Speedway Motors |

#91031311

Speedway Removable Brake Line Retaining Tab for Rubber Hose

(38)

Sold in Quantity:

Pair

Material Type:

Steel

$14.99

/pair

Weld-On 1978-88 GM Metric Caliper Bracket

Speedway Motors |

#91641010

Weld-On 1978-88 GM Metric Caliper Bracket

(26)

Material Type:

Steel

Finish:

Painted

$21.99

/each

Speedway Motors |

#91031843

8" Braided Stainless Steel Brake Line

(11)

Brake Hose Length:

Brake Hose Material:

Stainless Steel Braided

Sold in Quantity:

Each

$17.99

/each

Stainless Steel -3 AN Brake Line Kit, 4-Hose, 20 Ft. Tubing

Speedway Motors |

#6178540

Stainless Steel -3 AN Brake Line Kit, 4-Hose, 20 Ft. Tubing

(1)

Material Type:

Stainless Steel

Overall Length:

20 ft.

AN Size:

-3 AN

$344.99

/each

Speedway 3/16 Inch Nickel/Copper AN Brake Line Kit

Speedway Motors |

#91095191

Speedway 3/16 Inch Nickel/Copper AN Brake Line Kit

(2)

Material Type:

Nickel Copper Alloy

Overall Length:

25 ft.

AN Size:

-3 AN

$196.99

/kit

Stainless Steel Single Brake Line Tube Clamps, Bag/12

Speedway Motors |

#91031315

Stainless Steel Single Brake Line Tube Clamps, Bag/12

(122)

Material Type:

Stainless Steel

Color:

Natural

Sold in Quantity:

Set

$16.49

/bag

Speedway Drum Brake Residual Valve, 10 PSI, Purple

Speedway Motors |

#91031347

Speedway Drum Brake Residual Valve, 10 PSI, Purple

(45)

Pressure Rating:

10 psi

Inlet Fitting:

1/8" NPT Female

Outlet Fitting:

1/8" NPT Female

$20.99

/each

Stainless Steel Dual Brake Line Tube Clamps, Bag/12

Speedway Motors |

#91031316

Stainless Steel Dual Brake Line Tube Clamps, Bag/12

(37)

Material Type:

Stainless Steel

Color:

Natural

Sold in Quantity:

Set

$19.99

/bag

-7%

Earls |

#42500033ERL

Earls 00033ERL Hardline Tube Nut, 3/8-24 IFM, 3/16 Tubing, 5-Pack

Fitting Type:

Hardline Tube Nut Fitting

Angle:

Straight

Fitting End A:

3/8-24 I.F. Male

$20.89

/each

$22.60

-7%

Earls |

#42500103ERL

Earls 00103ERL Hardline Tube Nut 10mm x 1.0 IFM 3/16 Tube, 5-Pack

Fitting Type:

Hardline Tube Nut Fitting

Angle:

Straight

Fitting End A:

10mm x 1.0 I.F. Male

$20.89

/each

$22.60

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GMC 300 Brakes

Year

Subcategory

Part

Brand

Transmission Family

Rear Axle Family

Availability

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Price

Customer Rating

Products

Wilwood 260-13784 Red 10 PSI Residual Pressure Valve with Fittings

Dual 7 Inch Brake Booster Master Cylinder Combo, 1-1/8 Inch Bore

Dual 8 Inch Brake Booster Master Cylinder Combo, 1-1/8 Inch Bore

Under-Floor Universal Brake Pedal and Booster Kit

GM Disc/Drum Proportioning Valve for 3/8-24 Outlets

Related Articles

Universal Fit Firewall Mount Clutch/Brake Pedal Assembly

Speedway Universal Under-Dash Brake Pedal Mount Bracket

Under-Dash Brake Pedal Assembly, Single Diaphragm

Universal Fit Firewall Mount Brake Pedal Assembly

Replacement 11-1/4 Inch Rear Brake Rotor

Braided Stainless Steel DOT Brake Lines & Rear Brake Hoses 3/8-24

Under-Dash Brake Pedal Mount w/Booster & Master Cylinder

12" Braided Stainless Steel Brake Line

Stainless 48 Inch Brake Line with 90 Degree End

Braided Stainless AN 60 Inch Brake Line

Dual Diaphragm Power Brake Booster, 8 Inch, Chromate Finish

Aluminum Wheel Spacer, 1/4 Inch Thick, Black Anodized

Universal Polished Aluminum Large Brake Pedal Pad

Stainless Steel Brake Hose Kit, D52 Caliper with Banjo, 12 Inch

Speedway Floor Mount E-Brake Boots

Aluminum Master Cylinder w/ Stainless Bore

Speedway Motors Brake Proportioning Valve Kit With Fittings

18 Inch Braided Stainless -3AN Brake Line Kit, 3/8 Inch or 10mm

Stainless Steel -3 AN Brake Line Kit, 3-Hose, 20 Ft. Tubing

Single Diaphragm Power Brake Booster, 7 Inch, Chromate Finish

Speedway Deluxe 37-Degree Brake Line Turret-Style Flaring Tool

Speedway Removable Brake Line Retaining Tab for Rubber Hose

Weld-On 1978-88 GM Metric Caliper Bracket

8" Braided Stainless Steel Brake Line

Stainless Steel -3 AN Brake Line Kit, 4-Hose, 20 Ft. Tubing

Speedway 3/16 Inch Nickel/Copper AN Brake Line Kit

Stainless Steel Single Brake Line Tube Clamps, Bag/12

Speedway Drum Brake Residual Valve, 10 PSI, Purple

Stainless Steel Dual Brake Line Tube Clamps, Bag/12

Earls 00033ERL Hardline Tube Nut, 3/8-24 IFM, 3/16 Tubing, 5-Pack

Earls 00103ERL Hardline Tube Nut 10mm x 1.0 IFM 3/16 Tube, 5-Pack