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
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4.86 Ratio 9in Ford 69-0067-1
RICHMOND
$465.99A 4.86 ratio ring and pinion transforms your Ford 9-inch differential into a track-focused powerhouse, delivering aggressive acceleration and superior torque multiplication for competition and...RIC69-0067-1- SKU:
- RIC69-0067-1
- Availability:
- Ships Same Business Day
- Weight:
- 20.64 LBS
- MFG Part #:
- 69-0067-1
$465.99Qty in Cart: 0Quantity:Price:$465.99Subtotal: -
Excel Ring & Pinion Gear Set GM 12 Bolt 3.42 12BC342
RICHMOND
$220.99A 3.42 ring and pinion ratio delivers the acceleration you need for street performance and moderate track use without sacrificing highway cruising ability. This Excel gear set is engineered for the...RIC12BC342- SKU:
- RIC12BC342
- Availability:
- Ships Same Business Day
- Weight:
- 16.00 LBS
- MFG Part #:
- 12BC342
$220.99 -
Axle Bearing 9in Ford 1.378 x 2.834 9103
RATECH
$17.99A worn or damaged axle bearing will compromise your 9-inch Ford rear end's structural integrity and introduce play that kills handling precision and accelerates component wear. Upgrading to a quality...RAT9103- SKU:
- RAT9103
- Availability:
- Ships Same Business Day
- Weight:
- 1.00 LBS
- MFG Part #:
- 9103
$17.99 -
Complete Kit GM 8.5in w/ Eaton / Auburn Posi 366K
RATECH
$129.99A differential rebuild requires precision components and proper assembly—this complete kit eliminates guesswork by including every bearing, seal, and shim needed for a bulletproof installation...RAT366K- SKU:
- RAT366K
- Availability:
- Ships Same Business Day
- Weight:
- 5.75 LBS
- MFG Part #:
- 366K
$129.99 -
Crush Sleeve GM 8.5in 3109
RATECH
$4.79A properly functioning crush sleeve is critical to maintaining correct pinion bearing preload in your differential—without it, you risk premature bearing wear, gear noise, and catastrophic drivetrain...RAT3109- SKU:
- RAT3109
- Availability:
- Ships Same Business Day
- Weight:
- 0.07 LBS
- MFG Part #:
- 3109
$4.79 -
Bearing Kit Ford 9in 216B
RATECH
$86.99A worn or failing differential bearing kit compromises the precision and reliability of your Ford 9-inch rear end, leading to excessive play, noise, and potential catastrophic failure under load...RAT216B- SKU:
- RAT216B
- Availability:
- Ships Same Business Day
- Weight:
- 3.72 LBS
- MFG Part #:
- 216B
$86.99Qty in Cart: 0Quantity:Price:$86.99Subtotal: -
Smart Sleeve GM 12 Bolt 11005
RATECH
$32.99Tired of the guesswork that comes with traditional crush sleeves? The Smart Sleeve GM 12 Bolt (MPN: 11005) takes the frustration out of pinion preload setup, giving you precise, repeatable results...RAT11005- SKU:
- RAT11005
- Availability:
- Ships Same Business Day
- Weight:
- 0.47 LBS
- MFG Part #:
- 11005
$32.99 -
Smart Sleeve GM 8.2in 11003
RATECH
$12.99A worn or damaged crush sleeve compromises differential bearing preload, leading to excessive play, noise, and accelerated wear on your ring and pinion gears. The Smart Sleeve GM 8.2in delivers...RAT11003- SKU:
- RAT11003
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- MFG Part #:
- 11003
$12.99Qty in Cart: 0Quantity:Price:$12.99Subtotal: -
Smart Sleeve GM 8.5in 11002
RATECH
$12.49A worn or damaged crush sleeve compromises differential preload and can lead to excessive play in your rear axle assembly, degrading handling precision and accelerating bearing wear. The Smart Sleeve...RAT11002- SKU:
- RAT11002
- Availability:
- Ships Same Business Day
- Weight:
- 0.11 LBS
- MFG Part #:
- 11002
$12.49 -
Smart Sleeve 9in Ford 11001
RATECH
$13.99A properly functioning crush sleeve is critical to maintaining pinion bearing preload and ensuring consistent gear mesh in your Ford differential. Without a quality crush sleeve, you risk premature...RAT11001- SKU:
- RAT11001
- Availability:
- Ships Same Business Day
- Weight:
- 0.08 LBS
- MFG Part #:
- 11001
$13.99 -
Replacement 3 Disc Pack 9951-3
RAM CLUTCH
$279.00If you're running a high-horsepower setup or frequently launching hard, stock clutch components won't cut it. The Replacement 3 Disc Pack 9951-3 delivers the clamping force and durability you need...RAM9951-3- SKU:
- RAM9951-3
- Availability:
- Ships Same Business Day
- Weight:
- 2.74 LBS
- MFG Part #:
- 9951-3
$279.00 -
Diaphragm Cover 9903
RAM CLUTCH
$104.00The Diaphragm Cover 9903 is an essential replacement component for maintaining consistent clutch performance in your Ram Assault Weapon Series setup. When your original cover plate shows signs of...RAM9903- SKU:
- RAM9903
- Availability:
- Ships Same Business Day
- Weight:
- 2.42 LBS
- MFG Part #:
- 9903
$104.00 -
Floater Plate 9901
RAM CLUTCH
$41.00A worn or compromised floater plate directly impacts clutch engagement consistency and power delivery to the wheels—critical factors in both strip racing and high-demand street applications. The...RAM9901- SKU:
- RAM9901
- Availability:
- Ships Same Business Day
- Weight:
- 0.97 LBS
- MFG Part #:
- 9901
$41.00 -
6.25in Racing Clutch Che 10 SP 3 Disc 9351S
RAM CLUTCH
$649.00For serious drag racing and high-horsepower applications, a triple-disc clutch delivers the holding power and engagement precision you need to transfer maximum torque to the wheels without slippage...RAM9351S- SKU:
- RAM9351S
- Availability:
- Ships Same Business Day
- Weight:
- 13.14 LBS
- MFG Part #:
- 9351S
$649.00 -
GM L/W Diaphram Pressure Plate 11.7lbs 851
RAM CLUTCH
$385.00A lightweight pressure plate is essential for reducing rotational mass and improving throttle response, especially in high-RPM applications where every ounce matters. The GM L/W Diaphragm design...RAM851- SKU:
- RAM851
- Availability:
- Ships Same Business Day
- Weight:
- 12.40 LBS
- MFG Part #:
- 851
$385.00 -
Street Stock Clutch 801
RAM CLUTCH
$389.00The Street Stock Clutch 801 delivers reliable, consistent engagement for street and entry-level racing applications where dependable power transfer matters. Built with a lightweight aluminum pressure...RAM801- SKU:
- RAM801
- Availability:
- Ships Same Business Day
- Weight:
- 13.84 LBS
- MFG Part #:
- 801
$389.00 -
Remote Bleeder Kit 78510
RAM CLUTCH
$32.00Bleeding hydraulic clutch systems from the driver's seat eliminates the need for a second person and reduces air entrapment that compromises pedal feel and engagement consistency. The Remote Bleeder...RAM78510- SKU:
- RAM78510
- Availability:
- Ships Same Business Day
- Weight:
- 0.31 LBS
- MFG Part #:
- 78510
$32.00 -
Street Hydraulic Bearing GM 1.375 Collar 78125
RAM CLUTCH
$141.00A hydraulic throwout bearing is essential for smooth clutch engagement and disengagement, especially if you're running a high-performance setup or upgrading from a worn OEM unit. This GM-specific...RAM78125- SKU:
- RAM78125
- Availability:
- Ships Same Business Day
- Weight:
- 1.70 LBS
- MFG Part #:
- 78125
$141.00Qty in Cart: 0Quantity:Price:$141.00Subtotal: -
Release Bearing 78100
RAM CLUTCH
$169.00A precision hydraulic throwout bearing is essential for smooth clutch engagement and consistent pedal feel, especially in high-performance or frequently-driven applications. The Release Bearing 78100...RAM78100- SKU:
- RAM78100
- Availability:
- Ships Same Business Day
- Weight:
- 2.26 LBS
- MFG Part #:
- 78100
$169.00 -
Replacement Bearing For #78125 78017
RAM CLUTCH
$34.00A worn or failing throwout bearing compromises your clutch engagement and can lead to costly drivetrain damage down the line. This replacement bearing restores crisp, reliable pedal response and...RAM78017- SKU:
- RAM78017
- Availability:
- Ships Same Business Day
- Weight:
- 0.35 LBS
- MFG Part #:
- 78017
$34.00
