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#91041230
GM 12-Bolt Steel Full Spool
- This is a steel full spool made from 4130 aircraft alloy heat treated steel.
- Provides Ultimate Traction In Extreme Off Road, Circle Track And Drag Strip Conditions
- Bullet Proof, Competition Proven Design
$175.99
/each
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Product Summary
GM 8.875 Inch 12-Bolt Car, Full Spool Type, Steel
- This is a steel full spool made from 4130 aircraft alloy heat treated steel.
- Provides Ultimate Traction In Extreme Off Road, Circle Track And Drag Strip Conditions
- Bullet Proof, Competition Proven Design
- Low Cost Posi Alternative
- Easy installation
Key Specs
| MFG. Part # | 91041230 |
| Spool Type | Full |
| Spline Count | 30 |
| Spool Weight | Standard |
| Material Type | Steel |
Need To Know
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Return PolicySpeedway Motors 91041230 Details
Speedway Motors 91041230 Details
GM 12-Bolt Steel Full Spool, 30 Spline
Spools are an alternative to a locker as traction and performance enhancement. Spools are a favorite of off road competitors, dirt track racers and drag racers. A differential with a spool set up delivers equal power and traction to both left and right side rear wheels. Spool solutions are less expensive than lockers and weigh less. We offer a full line of mini and full spools in the most popular applications for such differential modification.
Features
- This is a steel full spool made from 4130 aircraft alloy heat treated steel.
- Provides Ultimate Traction In Extreme Off Road, Circle Track And Drag Strip Conditions
- Bullet Proof, Competition Proven Design
- Highest Quality Steel Alloys
- Low Cost Posi Alternative
- Easy Installation
Specs
Type 4-series 12-Bolt Car rear end with 3.90-6.14 ring and pinion
Speedway Motors 91041230 Specifications
Speedway Motors 91041230 Specifications
| KEY SPECS | |
|---|---|
| MFG. Part # | 91041230 |
| Brand | Speedway Motors |
| Spool Type | Full |
| Spline Count | 30 |
| Spool Weight | Standard |
| Material Type | Steel |
| GENERAL | |
| Finish | Zinc Plated |
| Sold in Quantity | Each |
| Notes | FS1230 |
Ratings & Reviews
5
1 Review
Ratings & Reviews
5
1 Review
5
1 reviews
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Would buy again
5.0
5 months ago
Dragster
.norwalk ohio
Verified
Use in my race car love it
Would Recommend
Showing 1 of 1 reviews
Questions & Answers
Questions & Answers
4 Questions • 4 Answers
Hello, I have a 12 bolt car housing, with 31 spline Moser axles. Will this work and will the factory carrier bearings work?
by A
• 8 years ago
1 answer
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what is the spline count on this? also is it 8.875 inch or different also do you sell the bearings for it?
by Rob
• 9 years ago
1 answer
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my truck has a series 4 carrier will the 488 gear work with this spool?
by madman
• 10 years ago
1 answer
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Will this work on fm 12 bolt truck axle and add a set of 4:56 gears
by Daryl
• 10 years ago
1 answer
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4 of 4 questions shown