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Big Bore GM Metric 1978-88 Brake Caliper
Big Bore GM Metric 1978-88 Brake Caliper

"BIG BORE" METRIC CALIPER

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Big Bore GM Metric 1978-88 Brake Caliper
"BIG BORE" METRIC CALIPER
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Part # UP61318
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Important Messages:

  • This product is discontinued.
  • This item ships directly from the manufacturer. It may take an additional business days for Speedway Motors to ship this item.
  • Get FREE shipping when your order includes this item and exceeds $99! Ground shipping only in the contiguous US.
  • This item ships via Ground Shipping only. Expedited and Air shipping options are not available.
  • This item UP61318 is made to order. It will be shipped from our warehouse when it is produced.

Details

Info

This item is garage sale priced because it's missing one slide bolt.

 

**No Warranty, No Returns On Garage Sale Items**

 

If you are using 1978-88 GM Metric style brake calipers your choices of piston sizes are pretty much limited to 2-1/2". This isn't bad unless you want to 'tune' your braking by using different size calipers front to rear. By using a larger 2-3/4" piston you will increase the braking force at a wheel over a wheel using a smaller piston.

Bleeder and inlet are both 10mm-1.5 inlet allowing the caliper to be used on either side. Plus, these calipers have been ground smooth to make them easier to paint.

Includes pads and hardware. Sold as EACH.

  • 20% increase in stopping power over stock calipers
  • Can used on the left and right sides
  • Extra ribs have been added internally while unnecessary weight was removed
  • Lighter, stronger, has more stopping power than OEM calipers
  • Each caliper includes:
    • brake pads
    • clips
    • slide pins
    • banjo bolt
    • washers
    • bleeder screw

Notes

  1. Can be configured to be used as left or right.
  2. Has a 2.75 inch bore.
  3. Uses the popular “154” (Chevrolet 78-88 mid size, 83-02 S10) brake pad.
  4. A direct replacement for the “4125/26” (Chevrolet 1978-88 mid size, 1983-02 S10) calipers.
  5. The slide bolt center to center spacing is 5.5"

Specs

Material Type:
Steel
Sold in Quantity:
Each
Finish:
Natural
Caliper Pistons:
Single
MFG. Part #:
910-31040
Garage Sale:
Yes
Centerline of Holes:
5.50
Piston Diameter:
2.75
Rotor Thickness:
1.00
Some parts are not legal for use in California or other states with similar laws/regulations

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  • We get a lot of questions about brake kits so Tim gives a brief overview of disc brake setups.
  • If you're changing your brake pads before you hit your first race, it's important to burnish or bed-in your new pads. Check out our quick tech-tip on bedding brakes and how to minimize pad wear and get the best performance out of your brakes.
  • After getting the control arms and drop spindles installed last time, we are dying to see what it looks like on the ground. Today we are working with the Speedway Deluxe Disc Brake Kit. Josh and Joe are on a roll!
  • Steve replaces the factory GM 8.5" 10-bolt rear end on his '76 Chevrolet Laguna S3 with a GM 10 & 12 bolt bolt-on rear disc brake kit.

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