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!
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Bert Ford Bell Housing Alum 301-F-NFC
BERT TRANSMISSIONS
$689.99If you're running a Small Block Ford with a manual transmission swap or custom bellhousing setup, the Bert Ford Bell Housing Alum 301-F-NFC delivers the precision engineering and reliability that separates amateur builds from competition-grade...BER301-F-NFC- SKU:
- BER301-F-NFC
- Availability:
- Ships Same Business Day
- Weight:
- 20.45 LBS
$689.99 -
Bert Chevy Bell Housing Mag w/o Ring Gear or Coupler 301-C-NFC-MAG
BERT TRANSMISSIONS
$1,149.99A lightweight bellhousing is fundamental to reducing rotational mass in high-performance applications, directly improving acceleration and reducing parasitic drag on your engine. The Bert Chevy mag bellhousing eliminates unnecessary weight without...BER301-C-NFC-MAG- SKU:
- BER301-C-NFC-MAG
- Availability:
- Ships Same Business Day
- Weight:
- 12.45 LBS
$1,149.99Qty in Cart: 0Quantity:Price:$1,149.99Subtotal: -
ATI Flexplate Kit - SFI - GM LS Series 168-Tooth 915733
ATI PERFORMANCE
$338.99A flexplate is the critical link between your transmission and engine—get the wrong one, and you're looking at vibration, slippage, and catastrophic failure. The ATI Flexplate Kit ensures rock-solid engagement with your GM LS engine and transmission,...ATI915733- SKU:
- ATI915733
- Availability:
- Ships Same Business Day
- Weight:
- 8.95 LBS
$338.99 -
ATI SBC 168 Tooth Flexplate - SFI - Int. Balance 915541
ATI PERFORMANCE
$218.99A flexplate is the critical link between your engine and transmission—it needs to be reliable, balanced, and built to handle the demands of serious performance driving. The ATI SBC 168 Tooth Flexplate delivers the durability and precision required for...ATI915541- SKU:
- ATI915541
- Availability:
- Ships Same Business Day
- Weight:
- 7.40 LBS
$218.99 -
Allstar Performance Fill Line Kit ALL36148
ALLSTAR PERFORMANCE
$81.99A properly sealed fuel cell fill system is critical for safe, reliable racing—especially when you're running pressurized fuel systems or competing in sanctioned events. This Allstar Performance kit eliminates guesswork with pre-assembled,...ALL36148- SKU:
- ALL36148
- Availability:
- Ships Same Business Day
- Weight:
- 0.98 LBS
$81.99 -
Allstar Performance Converter 350/400 2000-2200 Stall ALL26908
ALLSTAR PERFORMANCE
$266.99A properly matched torque converter is essential for maximizing acceleration and drivability in TH350 and TH400-equipped vehicles. This Allstar converter's 2000-2200 RPM stall range delivers crisp throttle response and improved launch characteristics...ALL26908- SKU:
- ALL26908
- Availability:
- Ships Same Business Day
- Weight:
- 33.10 LBS
$266.99 -
Allstar Performance Converter 350/400 2200-2600 Stall ALL26906
ALLSTAR PERFORMANCE
$259.99A torque converter is the unsung hero of any automatic transmission setup—it directly impacts how efficiently your engine delivers power to the wheels off the line. The Allstar Performance ALL26906 delivers a 2200-2600 RPM stall range that maximizes...ALL26906- SKU:
- ALL26906
- Availability:
- Ships Same Business Day
- Weight:
- 33.80 LBS
$259.99 -
Allstar Performance Converter 350/400 3500+ Stall ALL26904
ALLSTAR PERFORMANCE
$359.99A proper stall converter is essential for extracting the full potential from your TH350 or TH400 transmission, especially if you've added power through forced induction or built engine modifications. The Allstar Performance 3500+ stall converter ensures...ALL26904- SKU:
- ALL26904
- Availability:
- Ships Same Business Day
- Weight:
- 23.43 LBS
$359.99 -
Allstar Performance Converter 350/400 3200-3500 Stall ALL26902
ALLSTAR PERFORMANCE
$339.99A properly matched torque converter is critical to unlocking your transmission's full potential—without it, you're leaving power on the table and risking inefficient power delivery. The Allstar Performance 3200-3500 stall converter is engineered for...ALL26902- SKU:
- ALL26902
- Availability:
- Ships Same Business Day
- Weight:
- 23.40 LBS
$339.99 -
Allstar Performance Converter 350/400 2700-3000 Stall ALL26900
ALLSTAR PERFORMANCE
$349.99A torque converter's stall speed directly impacts how much engine RPM you need before the transmission engages—too low and you're leaving power on the table; too high and you'll overheat the fluid and damage the unit. The Allstar Performance 2700-3000...ALL26900- SKU:
- ALL26900
- Availability:
- Ships Same Business Day
- Weight:
- 23.35 LBS
$349.99 -
3/8-Inch Shifter Rod with Complete Linkage - Aluminum, Custom Length Options
J J MOTORSPORTS
$24.00 - $28.00Precision shifting under load demands a linkage system built to handle the abuse of competitive driving. This 3/8-inch aluminum shifter rod with complete heim joint assembly eliminates play and guesswork from your shift gate, delivering crisp engagement...RCCH-021- SKU:
- RCCH-021
- Availability:
- Ships Same Business Day
- Weight:
- 2.20 LBS
- Size:
- 3/8
- Length:
- choose length
- Material:
- Aluminum
- Threads:
- 3/8 LH and RH
- Unit of Measure:
- Each
$24.00 - $28.00 -
3/8-Inch Shifter Rod Tube
J J MOTORSPORTS
$10.00 - $13.00A quality shifter rod tube is foundational to precision gear selection—sloppy linkage introduces inconsistent engagement and missed shifts that cost you time on track and reliability on the street. This 3/8-inch aluminum rod delivers direct, repeatable...RCCH-022- SKU:
- RCCH-022
- Availability:
- Ships Same Business Day
- Weight:
- 2.00 LBS
- Size:
- 3/8
- Length:
- choose length
- Material:
- Aluminum
$10.00 - $13.00 -
Winters Ring & Pinion 4.11 8" Second Gen Short with Bearings WIN65411SB-CT
WINTERS
$913.99If you're running a Winters 12-Bolt Quick Change rear end in competitive racing, your gear ratio directly determines acceleration, top-end speed, and overall track performance. The 4.11 ratio in this ring and pinion set delivers aggressive acceleration...WIN65411SB-CT- SKU:
- WIN65411SB-CT
- Availability:
- Ships Same Business Day
- Weight:
- 16.25 LBS
$913.99 -
Winters Falcon Transmission Rebuild Kit Bearings Frictions Gaskets Seals WIN63476-2
WINTERS
$149.99A worn transmission costs you consistency on the track and reliability on the street. This Winters Falcon rebuild kit gives you everything needed for a complete overhaul—all the friction discs, steels, bearings, seals, and gaskets in one package. Restore...WIN63476-2- SKU:
- WIN63476-2
- Availability:
- Ships Same Business Day
- Weight:
- 1.48 LBS
$149.99Qty in Cart: 0Quantity:Price:$149.99Subtotal: -
Winters Flex Plate Small Block Chevy 153 Tooth External Balance 1-Piece Rear Main WIN62866
WINTERS
$91.99If you're running a Small Block Chevy with external balancing, you need a flex plate that matches your engine's exact specifications—mismatched components lead to vibration, premature wear, and costly rebuilds. The Winters 153-tooth flex plate is...WIN62866- SKU:
- WIN62866
- Availability:
- Ships Same Business Day
- Weight:
- 5.06 LBS
$91.99 -
Winters Clutch Pack Hub 36 Tooth Aluminum Insert WIN61734-36
WINTERS
$189.99If you're running a Winters Falcon Transmission in a high-performance or racing application, the quality of your clutch pack hub directly impacts shift consistency and power delivery under load. The Winters Clutch Pack Hub with 36-tooth aluminum insert...WIN61734-36- SKU:
- WIN61734-36
- Availability:
- Ships Same Business Day
- Weight:
- 1.81 LBS
$189.99 -
Winters Spring Driveshaft Dirt Modified 1.079 ID 2.095 Length Steel Chrome WIN5269
WINTERS
$8.49Driveshaft spring tension directly impacts how your dirt modified transfers power to the track—inconsistent pressure means lost traction and unpredictable handling when you need it most. The Winters Spring Driveshaft is engineered specifically for dirt...WIN5269- SKU:
- WIN5269
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
$8.49Qty in Cart: 0Quantity:Price:$8.49Subtotal: -
Winters Solid Axle 33-1/2 in 31 Spline Carrier 24 Spline Drive Flange Steel Natural WIN5067-33.500
WINTERS
$118.99If you're building or maintaining a race car, axle shaft integrity directly impacts your lap times and safety. The Winters Solid Axle delivers the spline configuration and robust steel construction needed to handle repeated high-load cycles without...WIN5067-33.500- SKU:
- WIN5067-33.500
- Availability:
- Ships Same Business Day
- Weight:
- 12.00 LBS
$118.99Qty in Cart: 0Quantity:Price:$118.99Subtotal: -
Winters Solid Axle 32-1/2 in 31 Spline Carrier 24 Spline Drive Flange Steel Natural WIN5067-32.500
WINTERS
$118.99When you're running a solid axle setup, your axle shafts are critical load-bearing components that directly impact handling precision and reliability under hard cornering and acceleration. The Winters 32-1/2 inch solid axle delivers the strength and...WIN5067-32.500- SKU:
- WIN5067-32.500
- Availability:
- Ships Same Business Day
- Weight:
- 11.26 LBS
$118.99Qty in Cart: 0Quantity:Price:$118.99Subtotal: -
Winters Solid Axle 31-1/2in 31 Spline Carrier 24 Spline Drive Flange WIN5067-31.500
WINTERS
$118.99A quality axle shaft is the backbone of any high-performance rear end—it has to transmit power reliably under extreme loads while maintaining perfect concentricity. The Winters Solid Axle delivers the strength and precision needed for consistent...WIN5067-31.500- SKU:
- WIN5067-31.500
- Availability:
- Ships Same Business Day
- Weight:
- 10.40 LBS
$118.99
