Spools and Mini Spools
Circle Track Spools & Mini Spools at JJ Motorsports
Lock your rear wheels for maximum traction and power distribution with high-performance spools and mini spools from JJ Motorsports. Ideal for high-speed straights in demanding circle track racing, these components enhance handling, acceleration, and durability in IMCA, USMTS, late models, modifieds, and street stocks, compatible with Ford 9in, GM 8.5, and other popular differentials.
Shop trusted brands like Allstar Performance for lightweight steel options, Yukon Gear and Axle for mini spools, and Richmond for full-size differentials. Explore related categories such as Circle Track Differentials and Rear End Components for complete rear end solutions or Circle Track Quick Change Rear Ends for gear upgrades.
Top Circle Track Spools & Mini Spools
- Allstar Performance Spool 9in Ford 31 Spline ALL68064 – Fullsize 31 Spline Steel Ford 9 in Each; durable spool for maximum traction in racing applications.
- Mini Spool - GM 8.5 10- Bolt 30-Spline YP MINSGM8.5-30 – Mini 30 Spline Steel Natural GM 10-Bolt Kit; compact design for limited slip in GM differentials.
- Differential Full Spool Ford 9in 31 Spline 81-0931-1 – Fullsize 31 Spline Steel Ford 9 in; high-strength spool for superior power transfer in Ford rear ends.
Browse our in-stock inventory below with same-day shipping and expert support. Free shipping on orders over $99! Questions? Contact us for fitment advice!
- Product
- Qty in Cart
- Quantity
- Price
- Subtotal
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Allstar Performance Spool 9in Ford 35 Spline 3.250in Case ALL68070
ALLSTAR PERFORMANCE
$184.99If you're running a Ford 9-inch rear end and want equal power delivery to both wheels without the binding and tire-scrubbing issues of a locker, a spool is your most direct solution. The Allstar Performance Spool delivers consistent traction by...ALL68070- SKU:
- ALL68070
- Availability:
- Ships Same Business Day
- Weight:
- 9.00 LBS
- MFG Part #:
- ALL68070
$184.99 -
Allstar Performance Spool 9in Ford 31 Spline Ultralite Scalloped ALL68067
ALLSTAR PERFORMANCE
$199.99If you're running a Ford 9-inch rear end and need absolute reliability under extreme load, this Allstar Performance spool eliminates wheel spin and delivers consistent power delivery to both rear wheels. The ultra-lite scalloped design reduces unsprung...ALL68067- SKU:
- ALL68067
- Availability:
- Ships Same Business Day
- Weight:
- 6.50 LBS
- MFG Part #:
- ALL68067
$199.99 -
Allstar Performance Spool 9in Ford 31 Spline Ultralite ALL68066
ALLSTAR PERFORMANCE
$159.99A spool eliminates differential action entirely, delivering maximum traction by locking both rear wheels together—essential for drag racing, oval track competition, and high-grip applications where consistency matters more than cornering finesse. The...ALL68066- SKU:
- ALL68066
- Availability:
- Ships Same Business Day
- Weight:
- 6.40 LBS
- MFG Part #:
- ALL68066
$159.99 -
Allstar Performance Spool 9in Ford 28 Spline Ultralite ALL68062
ALLSTAR PERFORMANCE
$149.99Eliminate wheel spin and maximize traction off the line with the Allstar Performance Spool 9in Ford 28 Spline Ultralite. This full-spool design locks both rear wheels together for absolute power transfer to the pavement—essential for drag racing, circle...ALL68062- SKU:
- ALL68062
- Availability:
- Ships Same Business Day
- Weight:
- 6.64 LBS
- MFG Part #:
- ALL68062
$149.99 -
Allstar Performance Spool 9in Ford 28 Spline ALL68060
ALLSTAR PERFORMANCE
$159.99A spool eliminates differential action entirely, locking both rear wheels together for maximum traction during hard acceleration and cornering. This is essential for dedicated track cars, drag racing applications, and high-performance street vehicles...ALL68060- SKU:
- ALL68060
- Availability:
- Ships Same Business Day
- Weight:
- 9.57 LBS
- MFG Part #:
- ALL68060
$159.99 -
PEM Full Spool 8.5in 30 Spline 10 Bolt GM FS8530
PEM
$160.99A full spool locks your differential for maximum traction during acceleration, eliminating wheel slip and delivering consistent power to both rear wheels—essential for drag racing, circle track, and high-performance street applications. If you're serious...PEMFS8530- SKU:
- PEMFS8530
- Availability:
- Ships Same Business Day
- Weight:
- 10.65 LBS
$160.99Qty in Cart: 0Quantity:Price:$160.99Subtotal: -
31 Spline Aluminum Spool Standard 2401
TIGER QUICK CHANGE
$438.99A quality spool is the foundation of any reliable differential setup, and the 31 Spline Aluminum Spool Standard 2401 delivers the lightweight strength you need for consistent power delivery on the track or strip. Machined from aluminum and polished to...TIG2401- SKU:
- TIG2401
- Availability:
- Ships Same Business Day
- Weight:
- 5.80 LBS
- MFG Part #:
- 2401
$438.99
