Drivetrain
Circle Track Drivetrain Parts: Transmissions, Clutches & Shifters for IMCA Racing at JJ Motorsports
Transfer power efficiently in your circle track racer with premium drivetrain components from JJ Motorsports. Our selection includes transmissions, clutches, shifters, differentials, bellhousings, and more, designed for superior performance, durability, and quick shifts in late models, modifieds, street stocks, and IMCA dirt racing. These high-quality parts ensure reliable power delivery and endurance under competitive track conditions.
Shop trusted brands like Winters Performance and Maxima Racing Oils. Explore related categories such as circle track chassis components for frame upgrades or circle track brakes for stopping power.
Top Circle Track Drivetrain Products
- Winters Falcon LM Transmission 2-Speed Manual Aluminum Case 18 Spline Input WIN60100 – High-performance 2-speed manual transmission for late model racing, with aluminum case, internal hydraulic clutch, IMCA approved for Stock Car, Modified, and Late Model classes; includes crankshaft coupler, 2.4:1 low gear, 1:1 high, reverse, 18 spline input, 27 spline output, 21-5/8" length, and 43 lbs weight.
- 2-Lever Floor Mount Shifter Assembly - Black Aluminum for IMCA UMP Racing – Durable shifter for IMCA and UMP racing, made from high-quality aluminum with black anodized finish; weighs 2 lbs, includes hardware for quick installation, and offers universal fit for efficient gear changes.
- Chevy Clutch Hydraulic Release Throwout Bearing Kit - Racing – Upgrades drivetrain with easy installation; includes hydraulic release bearing, CNC-machined housing, anti-rotation studs, adjusting lock nuts, AN Teflon-lined hose, and adapter fittings; compatible with Chevrolet, BOP, GMC manual transmissions and 5.5-7.25" racing clutches; features fail-safe design and lower pedal effort.
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
-
Allstar Performance Bearing Kit for Mopar 8-3/4 489 Case 2.000 I.D. Carrier Bearings ALL68532
ALLSTAR PERFORMANCE
$164.99If you're rebuilding or servicing a Mopar 8-3/4-inch rear axle, a quality bearing kit isn't optional—it's essential for reliable performance and longevity. This Allstar Performance kit eliminates the...ALL68532- SKU:
- ALL68532
- Availability:
- Ships Same Business Day
- Weight:
- 6.08 LBS
- MFG Part #:
- ALL68532
$164.99 -
Allstar Performance Bearing Kit for Mopar 8-3/4 489 Case 8.75 in ALL68531
ALLSTAR PERFORMANCE
$139.99A worn or damaged differential bearing setup compromises both handling precision and driveline longevity—especially in a performance application. This Allstar Performance kit supplies everything...ALL68531- SKU:
- ALL68531
- Availability:
- Ships Same Business Day
- Weight:
- 6.53 LBS
- MFG Part #:
- ALL68531
$139.99 -
Allstar Performance Bearing Kit GM 8.5 10 Bolt 1970-98 ALL68521
ALLSTAR PERFORMANCE
$99.99A worn-out differential bearing setup compromises your suspension geometry, introduces play in your drivetrain, and can lead to catastrophic failure under racing loads. The Allstar Performance...ALL68521- SKU:
- ALL68521
- Availability:
- Ships Same Business Day
- Weight:
- 5.79 LBS
- MFG Part #:
- ALL68521
$99.99 -
Allstar Performance Bearing Kit 8.875 GM 12-Bolt Car 1.625 Pinion ALL68519
ALLSTAR PERFORMANCE
$111.99Installing a quality bearing kit is essential when you're rebuilding or upgrading your 8.875-inch GM 12-bolt rear axle—it ensures proper pinion depth, carrier preload, and gear mesh geometry that...ALL68519- SKU:
- ALL68519
- Availability:
- Ships Same Business Day
- Weight:
- 6.15 LBS
- MFG Part #:
- ALL68519
$111.99 -
Allstar Performance Bearing Kit GM 8.875 12 Bolt Truck 1.438 Pinion ALL68518
ALLSTAR PERFORMANCE
$112.99Differential bearing kits are critical to maintaining proper pinion depth, preload, and gear mesh in your truck's rear end—factors that directly impact drivability, longevity, and performance under...ALL68518- SKU:
- ALL68518
- Availability:
- Ships Same Business Day
- Weight:
- 6.04 LBS
- MFG Part #:
- ALL68518
$112.99 -
Allstar Performance Bearing Kit GM 7.5 10 Bolt 1982-98 ALL68515
ALLSTAR PERFORMANCE
$114.99A worn or damaged differential bearing setup compromises your entire drivetrain's reliability and performance, introducing play that cascades into noise, vibration, and premature failure. This...ALL68515- SKU:
- ALL68515
- Availability:
- Ships Same Business Day
- Weight:
- 5.80 LBS
- MFG Part #:
- ALL68515
$114.99 -
Allstar Performance Bearing Kit Ford 8.8 ALL68513
ALLSTAR PERFORMANCE
$103.99Proper differential bearing preload and assembly are critical to longevity and performance in any Ford 8.8 rear end. This complete Allstar kit eliminates guesswork by providing all necessary...ALL68513- SKU:
- ALL68513
- Availability:
- Ships Same Business Day
- Weight:
- 6.02 LBS
- MFG Part #:
- ALL68513
$103.99 -
Allstar Performance Bearing Kit Ford 9 2.893 Bearing ALL68510
ALLSTAR PERFORMANCE
$114.99A properly set differential requires precision bearings and quality hardware—shortcuts here lead to premature wear, noise, and catastrophic failure under load. The Allstar Performance Bearing Kit...ALL68510- SKU:
- ALL68510
- Availability:
- Ships Same Business Day
- Weight:
- 5.15 LBS
- MFG Part #:
- ALL68510
$114.99 -
Allstar Performance Bearing Kit Ford 9 3.062 Bearing ALL68509
ALLSTAR PERFORMANCE
$114.99A proper differential installation requires precision-matched bearings and quality seals to maintain backlash consistency and prevent premature wear. The Allstar Performance Bearing Kit supplies...ALL68509- SKU:
- ALL68509
- Availability:
- Ships Same Business Day
- Weight:
- 5.18 LBS
- MFG Part #:
- ALL68509
$114.99 -
Allstar Performance Pinion Support 28spl Daytona Forged Alum BK ALL68396
ALLSTAR PERFORMANCE
$139.99A quality pinion support is critical for maintaining axle stability under hard acceleration and cornering loads—especially in high-horsepower applications where chassis flex can compromise...ALL68396- SKU:
- ALL68396
- Availability:
- Ships Same Business Day
- Weight:
- 3.85 LBS
- MFG Part #:
- ALL68396
$139.99 -
Allstar Performance Yoke Ford 9 35spl Forged 1350 U-Joint ALL68382
ALLSTAR PERFORMANCE
$141.99The Allstar Performance Yoke is engineered for serious Ford 9-inch differential builds where reliability under extreme loads is non-negotiable. This forged steel pinion yoke pairs directly with 1350...ALL68382- SKU:
- ALL68382
- Availability:
- Ships Same Business Day
- Weight:
- 2.84 LBS
- MFG Part #:
- ALL68382
$141.99 -
Allstar Performance Yoke Ford 9 28spl Forged 1350 U-Joint ALL68380
ALLSTAR PERFORMANCE
$134.99If you're running a Ford 9-inch rear end, a quality pinion yoke is non-negotiable for reliable power transfer and longevity. The Allstar Performance forged steel yoke handles the demanding loads of...ALL68380- SKU:
- ALL68380
- Availability:
- Ships Same Business Day
- Weight:
- 3.57 LBS
- MFG Part #:
- ALL68380
$134.99 -
Allstar Performance Ford 9 Truss Support 36" x 2" 12-Gauge Steel ALL68330
ALLSTAR PERFORMANCE
$66.99High-torque applications demand more from your Ford 9-inch axle housing than stock construction can deliver. The Allstar Performance Truss Support eliminates unwanted flex under load, protecting your...ALL68330- SKU:
- ALL68330
- Availability:
- Ships Same Business Day
- Weight:
- 5.58 LBS
- MFG Part #:
- ALL68330
$66.99 -
Allstar Performance Axle Tube Retainer Clamp 1/2in Wide LW ALL68326
ALLSTAR PERFORMANCE
$15.49Axle tube retainer clamps are critical for maintaining structural integrity in high-stress racing applications, preventing lateral movement and potential failure under extreme load conditions. This...ALL68326- SKU:
- ALL68326
- Availability:
- Ships Same Business Day
- Weight:
- 0.01 LBS
- MFG Part #:
- ALL68326
$15.49 -
Allstar Performance Axle Tube Bracket ALL68324
ALLSTAR PERFORMANCE
$28.99If you're running a quick-change rear end, this Allstar axle tube bracket is essential for maintaining solid structural support under load and acceleration. Proper axle tube bracing eliminates...ALL68324- SKU:
- ALL68324
- Availability:
- Ships Same Business Day
- Weight:
- 0.92 LBS
- MFG Part #:
- ALL68324
$28.99 -
Allstar Performance QC Axle Tube Support Brkt ALL68320
ALLSTAR PERFORMANCE
$27.99If you're running a quick-change rear axle setup, this support bracket is essential for maintaining structural integrity under load and cornering stress. The Allstar Performance QC Axle Tube Support...ALL68320- SKU:
- ALL68320
- Availability:
- Ships Same Business Day
- Weight:
- 0.32 LBS
- MFG Part #:
- ALL68320
$27.99 -
Allstar Performance 9in Ford Large Bearing Early Housing Ends 3.15in Bore 0.5in Bolt Holes ALL68309
ALLSTAR PERFORMANCE
$109.99Building a custom 9-inch Ford rear end demands precision components that won't compromise your axle assembly's integrity. These weld-on housing ends are engineered for early Ford applications with...ALL68309- SKU:
- ALL68309
- Availability:
- Ships Same Business Day
- Weight:
- 3.46 LBS
- MFG Part #:
- ALL68309
$109.99 -
Allstar Performance 9in Ford Large Bearing Housing Ends Late Model ALL68308
ALLSTAR PERFORMANCE
$109.99Building a custom-width 9-inch Ford rear end or upgrading to late-model large bearing applications requires precision housing ends that won't compromise structural integrity under load. Allstar...ALL68308- SKU:
- ALL68308
- Availability:
- Ships Same Business Day
- Weight:
- 3.53 LBS
- MFG Part #:
- ALL68308
$109.99 -
Allstar Performance Weld On Snout 5x5 2.5in Pin RH Thread ALL68304
ALLSTAR PERFORMANCE
$57.99If you're running a 5x5 hub setup on a dedicated race car or high-performance street machine, a quality rear axle snout is non-negotiable for reliability under sustained load. This Allstar weld-on...ALL68304- SKU:
- ALL68304
- Availability:
- Ships Same Business Day
- Weight:
- 3.68 LBS
- MFG Part #:
- ALL68304
$57.99 -
Allstar Performance Weld On Snout 5x5 2.0in Pin ALL68302
ALLSTAR PERFORMANCE
$51.99If you're running a dedicated rear axle assembly, you need a snout that matches your hub configuration exactly—and won't fail under load. This Allstar weld-on snout is engineered for 5x5 hubs with a...ALL68302- SKU:
- ALL68302
- Availability:
- Ships Same Business Day
- Weight:
- 3.41 LBS
- MFG Part #:
- ALL68302
$51.99
