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1978-88 Replacement GM Midsize Metric Calipers

Specs
Centerline of Holes:
5.50
Material Type:
Iron
Color:
Black
Sold in Quantity:
Each
Finish:
Natural
Piston Diameter:
2.38
Caliper Pistons:
Single
MFG. Part #:
-
Notes
Includes brake pads and slider bolts.
1978-88 Replacement GM Midsize Metric Calipers
1978-88 Replacement GM Midsize Metric Calipers
1978-88 Replacement GM Midsize Metric Calipers

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Details

Reviews

Q & A

What's in the Box

These stock replacement single piston metric calipers were standard equipment on 1978-88 GM midsize cars (Cutlass, Grand Prix, Regals, Monte Carlo, etc.). They feature a 2.38" single piston, shielded bottom inlet, and will save 3-1/2 lbs. per side compared to midsize 1969-1977 caliper.

  • No core charge required
  • 10mm x 1.50 inlet 
  • Speedway 156 pads and slider bolts included

 

Item Details

10mm x 1.50 Inlet
5 ½" mount spacing
Includes pads & slider bolts

Customer Reviews

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

BadgerBob
Four Corners NM
Product Rating

Works great for Universal Retro of Discs

September 19, 2013
I used these to retrofit my FJ40 - worked great. Good Quality and universal replacement on part for future.
Yes, I recommend this product.
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Rivi_the_racer
Verified Purchaser
San Ramon, CA
Product Rating

1978-88 Replacement GM Midsize Metric Ca

January 20, 2012
nice item
Pros:
  • Low Cost
Yes, I recommend this product.
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Page 1 of 1
91031047

Product Q&A

3 questions : 3 answers

1 answers

Are these QTU calipers? I am running these with a wilwood tandem master cylinder and having problems getting correct pedal pressure. I was told around 1980 GM switched to QTU calipers (quick take up) calipers that require a different master cylinder. Wondering if these require a different master cylinder.... thx

jrockdiddy
scottsdale, az
September 13, 2014

Are these QTU calipers? I am running these with a wilwood tandem master cylinder and having problems getting correct pedal pressure. I was told around 1980 GM switched to QTU calipers (quick take up) calipers that require a different master cylinder. Wondering if these require a different master cylinder.... thx

Answers

September 16, 2014
EricM
The GM metric calipers from 78-88 have been referred to as quick take up calipers but almost all of the master cylinders we offer have been used successfully with these calipers as long as bore size is correct. For correct operation master bore size should be 1” and up to 1 1/8 with power assist.
1 answers

Will this work for left and right? Will this work for left and right? I see some are marked as left and right some are not.

BobsVille
May 09, 2014

Will this work for left and right? Will this work for left and right? I see some are marked as left and right some are not.

Answers

May 12, 2014
EricM
These calipers are specific for left or right side. Choose the side needed in the drop down menu just above the Add To Cart button.
1 answers

Rotor size? Will this fit a 11.1 inch OD rotor? 1inch thick?

Jrockdizzle
Phoenix, AZ, USA
May 21, 2013

Rotor size? Will this fit a 11.1 inch OD rotor? 1inch thick?

Answers

May 22, 2013
EricM
The Metric calipers were intended to be used on 10.5" rotors as the stock ones were, however we use these on rotors up to 11.75" on brake kits that we sell. The radius of the pad isn't perfect for the larger rotors but they work just fine.
Page 1 of 1

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These stock replacement single piston Metric calipers were standard equipment on 1978-88 GM mid-size cars (Cutlass, Grand Prix, Regals, Monte Carlo, etc.). They feature a 2.38" single piston, shielded bottom inlet, and will save 3-1/2 lbs. per side compared to mid-size 1969-1977 caliper.

 

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Note:  Speedway Motors offers Metric GM calipers threaded with either a 10mm-1.5 or a 7/16"-20 inlet thread.  Please check caliper application for proper fitting requirement.

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(Part #6173958)
                        

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Sold in pairs.

Read more about bleeding brakes in our tech article, How To Bleed Your Brake Lines.