Weld-On 1978-88 GM Flat Mount Caliper Bracket
Weld-On 1978-88 GM Flat Mount Caliper Bracket
Speedway Motors

|

#91641009

Weld-On 1978-88 GM Flat Mount Caliper Bracket

  • Mounts GM front caliper to any 3" steel tube rear end
  • For use with 11.75" diameter rotors for great stopping power
  • Features .25" thick steel material
See More

Type:

Weld-On / Flat

Weld-On / LightenedClamp-On

$20.99

/each

In Stock


Quantity

Need Help? Call to Order

Add to a list

Share

Select a vehicle to verify Fitment

Select Vehicle

Product Summary

5.50" Centerline of Holes, 3.00" Tube O.D., Steel

  • Mounts GM front caliper to any 3" steel tube rear end
  • For use with 11.75" diameter rotors for great stopping power
  • Features .25" thick steel material
  • Minimum inside wheel ID is approx 13.5"
  • Brackets have a 7/16-20 thread pitch for slide bolt
See more details

Key Specs

MFG. Part #91641009
BrandSpeedway Motors
Material TypeSteel
FinishNatural
See more specs

Need To Know

Need help?

855.313.9176
View the Help Center

Quick and Easy Returns

Return Policy

Speedway Motors 91641009 Details

These caliper brackets mount flat and must be welded onto your 3" diameter axle tube. Designed to mount a 1978-1988 GM metric car front caliper for use with an 11.75" diameter rotor. Brackets are 1/4" thick.

IMCA APPROVED

Speedway Motors 91641009 Specifications

KEY SPECS
MFG. Part #91641009
BrandSpeedway Motors
Material TypeSteel
FinishNatural
GENERAL
Centerline of Holes5.50"
Tube O.D.3.00"
Thread Pitch7/16"-20
Material Thickness.25"
Sold in QuantityEach
NotesUsing a 3" axle and metric caliper, the approximate height from top of caliper to center of tube is 6.75". Minimum inside wheel ID is approx 13.5"

Ratings & Reviews

4.6

36 Reviews

Overall Assessment

Customers highly praise the product for its perfect fit and easy installation process. They remark on the exceptional quality of the part and its practical usability in various projects, specifically in mounting disc brakes and rear disc upgrades. There were mentions of modifications for different applications, pointing out its versatility. Although there is some negative feedback regarding thickness and fit issues with some calipers, most customers recommend it for its overall performance, reasonable price, and fit especially when welded on. One customer even preferred it over a bolt-together adapter kit for its cleaner look. They also highlight the product's strength and durability, with many looking forward to repurchasing.

Write A Review

4.6

36 reviews

5

29

4

3

3

2

2

0

1

2

Most Liked Positive Review

5.0

HAVEN'T USED THEM YET

HAVEN'T INSTALLED THEM YET, BUT ON FIRST MOCK UP IT WILL LOOK MUCH CLEANER THAN THE BOLT TOGETHER ADAPTER KIT I ALSO HAVE. THE BOLT TOGETHER CALIPER MOUNTS REQUIRED MULTIPLE MOCK UPS TO GET THE NUMBER OF SHIMS CORRECT AND ALL THE BOLTS MAKE IT LOOK A LITTLE "BUSY" COMPARED TO THIS CLEAN AND SIMPLE BRACKET. IF YOU CAN WELD A LITTLE, THIS IS THE WAY TO GO.

Most Liked Negative Review

1.0

I would not use or recommend this product.

The mount is simply too thin . This mount is used on a large brake. In my opinion there would be far too much flex . Needs to be at least 3/8 " thick.

Filter by Ratings

Yes

5.0

4 months ago

Randie48 Chrysler.

Sagle, Idaho

Verified

Converted drum brakes on a 67 Nova rear end on my 48 Chrysler Windsor.

Would Recommend

well built unit

5.0

2 years ago

wearl

nc

Verified

its is a well thought out kit,everything fit with good tolerances.only problem my axle had a 3 1/4 " die instead of 3" but doesnt take much grinding to let it fit properly.

Would Recommend

I would buy it again

5.0

4 years ago

47 chevy

Fairfax Iowa

Verified

Everything fit, easy to install.

Would Recommend

Perfect fit

5.0

5 years ago

Zac

Tulsa Oklahoma

Verified

Welded it on the axle and it was a perfect fit

Would Recommend

Good quality

5.0

5 years ago

JonnyVettw

Alberta , Canada

Verified

Good quality part. Looks better then a bolt on kit in my opinion. This should also be stronger

Would Recommend

makes every thing easy

5.0

5 years ago

dave

mankato mn

Verified

used these brackets to mount disk braked on a 1973 dart swinger

Would Recommend

I would buy again

4.0

6 years ago

Jim

Huntsville Ohio

Verified

works perfect

Would Recommend

Worked great for rear disc swap

5.0

7 years ago

Ad_mexican

Phoenix,AZ

Easy set up for rear disc upgrade on 88-98 chevy c1500

Would Recommend

Customer review image
Customer review image

I will buy this product again

5.0

7 years ago

MO

New York

Verified

This product works very well for my project, better than the pictures

Would Recommend

Great bracket

5.0

7 years ago

Chuck

Maricopa

Verified

Great product and price

Would Recommend

Load More Reviews

Showing 10 of 36 reviews

Questions & Answers

5 Questions • 5 Answers

What size is the bolt holes?

by Chad

• 9 years ago

1 answer

View Answer

What grade of steel is this bracket?

by Jesse

• 9 years ago

1 answer

View Answer

what slip on rotors can be used with these brackets need 5X4 3/4 bolt pattern rotors. says needs 11 3/4 rotor. 79 pontiac trans am rear rotors are 11.16. will these work? they are 1 inch thick. 79 caddy seville rotors are only 10.5 inches

by timc1975

• 13 years ago

1 answer

View Answer

can they be welded on a 8"ford rear end with a 21/4" axle tube ? or do i need a spacer to build fill the gap?

by leetagg

• 13 years ago

1 answer

View Answer

What thickness material is this made from? 3/16?

by

• 14 years ago

1 answer

View Answer

5 of 5 questions shown

Fitment

                  Customer Impersonation Script