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Weld-On 1978-88 GM Flat Mount Caliper Bracket

Specs
Material Type:
Steel
Sold in Quantity:
Each
Finish:
Natural
Thread Pitch:
7/16"-20
Centerline of Holes:
5.50
Tube O.D.:
3.00
Material Thickness:
.25
Notes
Using 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"
Weld-On 1978-88 GM Flat Mount Caliper Bracket

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Details

Reviews (12)

Q & A (3)

What's in the Box

Info

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

Customer Reviews

Rated 4.7 out of 5 by 12 reviewers.
RATING BREAKDOWN
12 reviews
5 Stars
10
4 Stars
0
3 Stars
2
2 Stars
0
1 Star
0
RECOMMEND THIS PRODUCT:

angrymotors
Verified Purchaser
Verified Reviewer
Waseca Mn

Great part, priced right

May 17, 2016
Used these brackets to convert a 1ton Dodge to rear Disc brakes. The axle tube size on the Dodge was slightly larger than the bracket was made for. Some modification was necessary to make it work. I will be purchasing these brackets again.
Pros:
  • Affordable Price
  • Perfect Fit
  • Quality Part
Cons:
  • Only One Axle Tube Size A
Yes, I recommend this product.
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mike
Verified Purchaser
Verified Reviewer
springfield mo.

just another pretty face

January 13, 2016
needs to come in different tube sizes [like 3",3.5"ect.
Yes, I recommend this product.
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jamie
Verified Purchaser
colorado springs

good part

December 22, 2015
good part
Yes, I recommend this product.
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The Big Guy
Verified Purchaser
Verified Reviewer
Houston TX

Exactly what I needed!

December 01, 2015
This part is exactly what I needed for my build. The caliper manufacturer couldn't even help me. This fit exact is great quality.
Pros:
  • Great part
  • Quality
  • Price
Yes, I recommend this product.
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SportMod
Verified Purchaser
Verified Reviewer
Spanish fork, UT

GM Caliper bracket

September 30, 2015
I bought these brackets for building a GM 7.5" 10 bolt axle for a Southern Sport mod, perfect fit, clean part, and best of all, priced just right.
Yes, I recommend this product.
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None
Verified Purchaser
Wenatchee Wa,

Outstanding part

September 15, 2015
OK piece delivered promptly
Yes, I recommend this product.
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Mitch
Verified Purchaser
Verified Reviewer
Ashland, KY

Excellent quality

August 17, 2015
Unfortunately these brackets didn't work for my application. I knew upon buying they may not. I have to say though, these fit the caliper with precision and are very heavy duty. Would buy from Speedway Motors again for sure.
Pros:
  • Heavy duty
Cons:
  • None
Yes, I recommend this product.
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gus
Verified Purchaser
Thief River Falls, MN

i would buy this product again

June 10, 2015
quality product
Pros:
  • QUALITY PRODUCT
  • Very fair price
Cons:
  • None
Yes, I recommend this product.
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32Bob
Verified Purchaser
San Antonio, TX, USA

Worked very well

October 20, 2014
I put these on an old Olds rear axle with 3" tubes. They fit the tubes and calipers well, made my job much easier.
Pros:
  • Good Quality
Yes, I recommend this product.
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DirtyJohnDeereHat
Verified Purchaser
baltimore, m.d.

great product

April 20, 2012
these are nice so you can put chevy brakes on anything. with a little grinding i put chevy front brakes on the back of my jeep dana 44 rear that had drums.
Pros:
  • Easy To Use
  • Well Made
Yes, I recommend this product.
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Page 1 of 2

Product Q&A

3 questions : 3 answers

1 answers

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

timc1975
August 19, 2013

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

Answers

August 20, 2013
Jason
Bracket number 91641009 is designed to work with the separate hat and rotor configuration such as number 91031931 or 91031933. If you want to use the smaller diameter Trans am rotors you would need to alter the bracket by a little over a quarter of an inch to get full rotor contact with the brake pads.
1 answers

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?

leetagg
Lincoln, ME 04457, USA
March 12, 2013

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?

Answers

March 12, 2013
Jason
This GM flat mount caliper bracket is designed for a 3" axle tube and approximate height from top of caliper to center of tube is 6.75". To use on a 2-1/4" axle tube you would need to build a spacer keeping the correct height of caliper
1 answers

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

November 18, 2011

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

Answers

November 21, 2011
Jason
The oveall thickness is .250"
Page 1 of 1

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