Product Summary

63-66 Chevy, 63-66 GMC, Disc/Drum Brake System Type

  • 8" power booster, dual-chamber master cylinder and a proportioning valve specifically designed for '63-'66 Chevy trucks
  • Kit can be set-up for disc/drum or four-wheel disc applications and comes to complete with installation hardware
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Key Specs

MFG. Part #91063660
BrandSpeedway Motors
Brake System TypeDisc/Drum
Brake Booster Diameter8 Inch
Master Cylinder MaterialSteel
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Speedway Motors 91063660 Details

Complete the disc brake conversion on your 1963-66 Chevy pickup (or enhance your existing brake system) with this high quality master cylinder and brake booster kit. It includes a 8" power booster, dual-chamber master cylinder and a proportioning valve specifically designed for 1963-66 Chevy trucks. The easy-to-install kit can be set up for disc/drum applications.

Learn more about selecting the proper master cylinder for your vehicle by reading our tech article. Brake System Selection. 

Speedway Motors 91063660 Specifications

KEY SPECS
MFG. Part #91063660
BrandSpeedway Motors
Brake System TypeDisc/Drum
Brake Booster Diameter8 Inch
Master Cylinder MaterialSteel
GENERAL
Brake Booster TypeVacuum Diaphragm Single
Outlet CountTandem/Both Sides
Master Cylinder Bore Size1 Inch
Brake Booster MaterialSteel
Master Cylinder Port Sizes1/2"-20 & 9/16"-18 IFF
Master Cylinder Bail TypeDouble Bail Wire Zinc Lid
Proportioning Valve IncludedYes
Reservoir IncludedYes
Sold in QuantityKit
NotesIncludes master cylinder, booster, mounting brackets, proportioning valve, and hardware.

Ratings & Reviews

4.5

6 Reviews

Overall Assessment

Customers appreciate the product for its high quality and practicality. They commend the straightforward installation process and the good fit, despite some extra drilling required. The product's durability and efficient performance also receive praise. Notably, the brake rod length is deemed slightly long but not a problem. Users suggest more detailed product description for better usability. Overall, the product is highly rated and often preferred over other options due to its well-executed design. They would buy the kit again, reflecting the product's superior features compared to competitors.

4.5

6 reviews

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Solved my problem!

5.0

a year ago

Glen

Salina KS

Verified

I converted my 65 C10 to four wheel disc brakes and needed a four wheel disc brake master cylinder. This one works great!

Would Recommend

Yes

4.0

a year ago

R

Texas

Verified

Brakes work great but pedal rod quality was poor. Needed to retap threads inside rod on one end.

Would Recommend

Good kit ,works well

3.0

3 years ago

CCA1

Boise Idaho

Verified

Kit works well and installation is straight forward. for 62 to 66 c10 requires part number 916-6066 to mount to firewall. this info should be more prominent in product description.

Would Recommend

I would buy this kit again

5.0

4 years ago

David

Lebanon TN

Verified

Ever thing bolted up you do have to drill the two top holes but everything bolted up the brake rod is a little bit long but no big deal

Would Recommend

Nice unit

5.0

5 years ago

Hoss

Elberfeld,Ind.

Verified

Good quality

Would Recommend

As described, great product.

5.0

9 years ago

Baseman

Lee's Summit MO

Verified

Set these up on my '66 Chevy truck. Works great

Would Recommend

Showing 6 of 6 reviews

Questions & Answers

6 Questions • 7 Answers

I have a 64 chevy c10, with a single line, if I am reading this correct, I can install this unit without changing brake lines and be good to go, is that correct?.

by Jerry

• 8 years ago

1 answer

Does this come with the booster mounting plate for the 60-66 gm truck or will it have to be got separate

by Bobby

• 9 years ago

2 answers

Working on a 1966 C-10 pick-up. Have converted to a five bolt wheel pattern for both the front disc and the rear drum brakes. Is this a direct bolt up or do you need a power brake conversion plate to mount it in place of the exiting master cylinder?

by McAviator

• 10 years ago

1 answer

what if i have front and rear disc on my 67 c10, will this valve work ? i have disc up front and a 300z independent rear suspension with disc brakes. i am using the stock pedals and brackets under the dash.

by bodyartbydave

• 12 years ago

1 answer

Do I have to have front disc brakes in order to go to power brakes? My '63 Chevy C10 still has good functioning drum brakes all around. Would the Pickup Brake Power Booster work in an all-drum brake application?

by Easy13

• 12 years ago

1 answer

I have a 1963 chevy pickup that has a inline 292 6 cylinder. Can I keep my stock air cleaner if I add this power brake booster unit? The original master cylinder only has two mounting holes The one listed here has four. Will I need to drill four new holes

by

• 14 years ago

1 answer

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Fitment

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