Product Summary

GM 8.5 Inch 10-Bolt, Mini Spool Type, 28 Spline Count

  • Economical way to lock the rear end without the expense of a full spool
  • 1970-76 Chevy
  • 10-bolt, 8.5 inch ring gear diameter, 28 axle spline
  • 8.5" Ring Gear Diameter
  • Stronger and easier solution than welding the spider gears
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Key Specs

MFG. Part #91048601
BrandSpeedway Motors
Spool TypeMini
Spline Count28
Material TypeSteel
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Speedway Motors 91048601 Details

Works on 70-76 GM 10-bolt rearends with 8.5" ring gear and 28-spline axles. Economical way for all race cars to "lock" the rearend. Will not work in posi rearends.

Item Details

8.5" ring gear, 28 spline

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Speedway Motors 91048601 Specifications

KEY SPECS
MFG. Part #91048601
BrandSpeedway Motors
Spool TypeMini
Spline Count28
Material TypeSteel
GENERAL
Sold in QuantityEach

Ratings & Reviews

4.7

3 Reviews

Overall Assessment

Customers enthusiastically confirm the product's exceptional performance and practicality. They appreciate its usability, specifically for specialized purposes like dirt track racing. The product's ease of use and adaptable qualities shine through in highly positive feedback. Despite requiring some modification for specific use, the product's resilience and effectiveness are signaled as superior compared to competitor offerings, illustrating its superior quality.

4.7

3 reviews

5

2

4

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Works great

5.0

5 years ago

Rick

San Diego

Verified

Works as needed

Part was good

5.0

10 years ago

Baby wamp

Hecla South Dakota

Verified

Easy to use

Would Not Recommend

If it was easy anybody could do it

4.0

10 years ago

Wild Thing

Millington, TN

Verified

Used the part to lock the rear end on 1979 Chevy for dirt track racing. Made it work after many hours of tedious grinding to make it fit. If it was easy anybody could do it!

Would Recommend

Showing 3 of 3 reviews

Questions & Answers

2 Questions • 2 Answers

My car has bolt in axles we put the mini spool in should the blocks move back in fourth on the pin are should there be something there to lock them in.

by Jerry

• 9 years ago

1 answer

Does this work with a c cliped rear end

by Hobby14s

• 10 years ago

1 answer

2 of 2 questions shown

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