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 31 Spline ALL68064
ALLSTAR PERFORMANCE
$159.99A spool eliminates differential action, locking both rear wheels together for maximum traction during hard acceleration—essential for drag racing, circle track, and any application where consistent power delivery matters. If you're building a high-output...ALL68064- SKU:
- ALL68064
- Availability:
- Ships Same Business Day
- Weight:
- 9.25 LBS
- MFG Part #:
- ALL68064
$159.99 -
Mini Spool - GM 8.5 10- Bolt 30-Spline YP MINSGM8.5-30
YUKON GEAR AND AXLE
$209.89A mini spool transforms your GM 10-bolt into a true performance differential by locking both wheels together for maximum traction off the line and through corners. This steel construction delivers the durability you need for sustained track sessions or...YKNYPMINSGM8.5-30- SKU:
- YKNYPMINSGM8.5-30
- Availability:
- Ships Same Business Day
- Weight:
- 5.69 LBS
$209.89 -
Differential Full Spool Ford 9in 31 Spline 81-0931-1
RICHMOND
$224.99A full spool eliminates wheel slip between your rear axles, delivering maximum traction and acceleration off the line—critical for drag racing, circle track, or any high-performance application where consistency matters. This Ford 9-inch spool is built...RIC81-0931-1- SKU:
- RIC81-0931-1
- Availability:
- Ships Same Business Day
- Weight:
- 8.70 LBS
$224.99 -
Differential Mini Spool GM 7.6in 28 Spline 78-7628-1
RICHMOND
$106.99A mini spool transforms your differential into a locked unit, delivering equal power to both wheels for maximum traction during hard acceleration and cornering. This steel construction is engineered to handle the demands of road racing and...RIC78-7628-1- SKU:
- RIC78-7628-1
- Availability:
- Ships Same Business Day
- Weight:
- 4.40 LBS
$106.99 -
Differential Mini Spool GM 7.5in 28 Spline 78-7528-1
RICHMOND
$112.99A mini spool is the definitive choice for consistent power delivery in tight racing applications where you need both wheels turning at the same speed without the complexity of a full locker. This steel spool eliminates wheel spin and unwanted rpm...RIC78-7528-1- SKU:
- RIC78-7528-1
- Availability:
- Ships Same Business Day
- Weight:
- 4.00 LBS
$112.99 -
Winters Ultra Light Aluminum Spool 31 Spline 10 in Quick Change WIN5034-11UL
WINTERS
$399.99Reducing rotational mass in your Quick Change setup directly improves acceleration response and lap times—especially critical in bracket racing and circle track competition. The Winters Ultra Light Aluminum Spool delivers the strength you need without...WIN5034-11UL- SKU:
- WIN5034-11UL
- Availability:
- Ships Same Business Day
- Weight:
- 5.17 LBS
- MFG Part #:
- 5034-11UL
$399.99 -
Winters 31 Spline Aluminum Spool for 10" Quick Change Rear End WIN5034-11A
WINTERS
$324.99If you're running a Winters 10-inch Quick Change rear end, this aluminum spool is the direct-bolt upgrade that reduces rotational mass and sharpens your acceleration off the line. The 31-spline design locks your axles in with zero slop, delivering...WIN5034-11A- SKU:
- WIN5034-11A
- Availability:
- Ships Same Business Day
- Weight:
- 5.72 LBS
- MFG Part #:
- 5034-11A
$324.99 -
Spool Aluminum QC0432
FRANKLAND RACING
$260.99If you're running a Frankland, Tiger, or Richmond quick change rear end, you need a spool that matches the demands of high-rpm racing. This aluminum spool delivers the direct power transfer and reliability required for consistent performance on the...FRKQC0432- SKU:
- FRKQC0432
- Availability:
- Ships Same Business Day
- Weight:
- 7.06 LBS
- MFG Part #:
- QC0432
$260.99 -
DMI CT1 Aluminum Spool RRC-1270
DIVERSIFIED MACHINE
$409.99A quality spool is the backbone of any reliable quick-change rear end system. The DMI CT1 Aluminum Spool delivers the strength and precision needed for consistent power transfer during high-load racing conditions, while keeping rotational mass minimal...DMIRRC-1270- SKU:
- DMIRRC-1270
- Availability:
- Ships Same Business Day
- Weight:
- 5.87 LBS
- MFG Part #:
- RRC-1270
$409.99 -
Coleman Steel Spool GM 7.5in Thick Ring Gear 22545
COLEMAN MACHINE
$589.99A spool eliminates side-to-side wheel slip, delivering maximum traction and consistent power delivery under hard acceleration. If you're running a dedicated track car or drag setup on a GM 10-bolt, this Coleman steel spool provides the rigid lockup you...COL22545- SKU:
- COL22545
- Availability:
- Ships Same Business Day
- Weight:
- 11.15 LBS
- MFG Part #:
- 22545
$589.99Qty in Cart: 0Quantity:Price:$589.99Subtotal: -
Allstar Performance Mini Spool 7.5 GM 10Bolt 26spl ALL68166
ALLSTAR PERFORMANCE
$93.99A mini spool delivers the traction and handling consistency you need when precision matters most—whether you're on the track or pushing your build to the limit. By eliminating differential action, this spool ensures both rear wheels rotate at the same...ALL68166- SKU:
- ALL68166
- Availability:
- Ships Same Business Day
- Weight:
- 3.86 LBS
- MFG Part #:
- ALL68166
$93.99 -
Allstar Performance Mini Spool 8.875 GM 12-Bolt 30 Spline Steel Black Powder Coat ALL68164
ALLSTAR PERFORMANCE
$99.99If you're running an open differential on your GM 12-bolt, you're leaving traction on the table. The Allstar Performance Mini Spool locks both axles together, eliminating wheel spin and delivering equal power to both sides—critical for consistent...ALL68164- SKU:
- ALL68164
- Availability:
- Ships Same Business Day
- Weight:
- 6.24 LBS
- MFG Part #:
- ALL68164
$99.99 -
Allstar Performance Mini Spool 8.2 GM 10Bolt 28spl ALL68162
ALLSTAR PERFORMANCE
$99.99A mini spool eliminates wheel slip and delivers consistent power delivery to both rear wheels during acceleration, giving you the traction advantage needed for drag racing, circle track, or street performance applications. If you're running a GM 10-bolt...ALL68162- SKU:
- ALL68162
- Availability:
- Ships Same Business Day
- Weight:
- 4.54 LBS
- MFG Part #:
- ALL68162
$99.99 -
Allstar Performance Mini Spool 8.5 GM 10Bolt 28spl ALL68160
ALLSTAR PERFORMANCE
$99.99If you're serious about drag racing or circle track competition, a mini spool delivers the straight-line acceleration and cornering consistency that separates winners from the rest. By locking both rear wheels during acceleration, you eliminate wheel...ALL68160- SKU:
- ALL68160
- Availability:
- Ships Same Business Day
- Weight:
- 6.15 LBS
- MFG Part #:
- ALL68160
$99.99 -
Allstar Performance Mini Spool 9in Ford 31sp LW ALL68122
ALLSTAR PERFORMANCE
$29.99If you're running a Ford 9-inch rear and need rock-solid, predictable power delivery to both wheels, a mini spool eliminates differential slip and gives you maximum traction off the line. This Allstar Performance unit locks both sides together for...ALL68122- SKU:
- ALL68122
- Availability:
- Ships Same Business Day
- Weight:
- 2.64 LBS
- MFG Part #:
- ALL68122
$29.99 -
Allstar Performance Mini Spool 9in Ford 28sp ALL68121
ALLSTAR PERFORMANCE
$29.99A mini spool transforms your Ford 9-inch differential into a locked unit, delivering consistent power to both rear wheels during acceleration and cornering. This is the setup serious racers and high-performance street builds rely on when traction is...ALL68121- SKU:
- ALL68121
- Availability:
- Ships Same Business Day
- Weight:
- 2.88 LBS
- MFG Part #:
- ALL68121
$29.99 -
Allstar Performance Spool QC 31spl Aluminum Frankland Tiger ALL68115
ALLSTAR PERFORMANCE
$314.99Quick-change rear ends demand a spool that can handle both precision and abuse—this Allstar Performance aluminum spool delivers uncompromising strength without the weight penalty. Built for serious racers who need reliable power delivery lap after lap,...ALL68115- SKU:
- ALL68115
- Availability:
- Ships Same Business Day
- Weight:
- 6.83 LBS
- MFG Part #:
- ALL68115
$314.99 -
Allstar Performance Spool QC 31spl Aluminum Winters DMI ALL68114
ALLSTAR PERFORMANCE
$289.99If you're running a quick-change rear end, you need a spool that delivers consistent power distribution without compromise. The Allstar Performance Spool QC locks both wheels together for maximum traction off the line, giving you the mechanical advantage...ALL68114- SKU:
- ALL68114
- Availability:
- Ships Same Business Day
- Weight:
- 6.05 LBS
- MFG Part #:
- ALL68114
$289.99 -
Allstar Performance Spool 9in Ford 40 Spline 3.250in Case ALL68074
ALLSTAR PERFORMANCE
$199.99If you're running a 9-inch Ford rear axle in a high-performance application, a quality spool is essential for consistent traction and predictable power delivery. The Allstar Performance Spool replaces traditional positraction units with a straightforward...ALL68074- SKU:
- ALL68074
- Availability:
- Ships Same Business Day
- Weight:
- 7.81 LBS
- MFG Part #:
- ALL68074
$199.99 -
Allstar Performance Spool 9in Ford 35 Spline 2.893-3.062 Case ALL68072
ALLSTAR PERFORMANCE
$199.99If you're running a Ford 9-inch differential, switching from a traditional carrier to a spool is one of the most direct ways to maximize traction and eliminate wheel hop during acceleration. The Allstar Performance ALL68072 delivers power equally to both...ALL68072- SKU:
- ALL68072
- Availability:
- Ships Same Business Day
- Weight:
- 8.52 LBS
- MFG Part #:
- ALL68072
$199.99
