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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Falcon Transmission Kit for 2-Piece Rear Main Seal Kit
J J MOTORSPORTS
$1,965.96A complete transmission overhaul demands precision engineering and reliable components—this kit delivers both. Whether you're rebuilding after high-mileage wear or upgrading for increased power...234-9027- SKU:
- 234-9027
- Availability:
- Ships Same Business Day
- Weight:
- 100.00 LBS
$1,965.96Qty in Cart: 0Quantity:Price:$1,965.96Subtotal: -
Dirt Street Stock/Hobby Stock Floater Rear End 2.5" GN Kit
J J MOTORSPORTS
$1,383.65Built for dirt and street stock competitors who demand a reliable, purpose-built rear end assembly, this floater kit eliminates guesswork with a complete solution—no hunting for individual components...234-9025- SKU:
- 234-9025
- Availability:
- Ships Same Business Day
- Weight:
- 100.00 LBS
$1,383.65 -
PEM Quick Change Assembly No Tubes 4.86 QCNT-486
PEM
$1,751.99Quick-change rear assemblies eliminate downtime between races by allowing you to swap gear ratios in minutes without breaking down the entire housing. For teams running multiple track configurations...PEMQCNT-486- SKU:
- PEMQCNT-486
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
$1,751.99 -
Winters Falcon LM Transmission 2-Speed Manual Aluminum Case 18 Spline Input WIN60100
WINTERS
$1,906.99If you're running late model stock cars or modified classes, you need a transmission that won't let you down when it matters most. The Winters Falcon LM delivers the gear ratios and durability you...WIN60100- SKU:
- WIN60100
- Availability:
- Ships Same Business Day
- Weight:
- 49.00 LBS
- MFG Part #:
- 60100
- Transmission Speeds:
- 2-Speed
- Input Shaft Spline Count:
- 18
- Output Shaft Spline Count:
- 27
- Bellhousing Included:
- No
- Yoke Included:
- No
- Shifter Included:
- No
- Case Material:
- Aluminum
- Gear Ratio (Low):
- 2.40:1
- Gear Ratio (High):
- 1.00:1
- Notes:
- 1.62"-18 spline input shaft. 1-3/16"-27 spline output shaft
$1,906.99Qty in Cart: 0Quantity:Price:$1,906.99Subtotal: -
Quarter Master Bellhousing Kit Bert / Brinn w/ KSE KRC Mount 115509124TMKSE
QUARTER MASTER
$1,761.25If you're running a Bert or Brinn transmission in a dedicated race car, you need a bellhousing that matches the precision of your drivetrain. This Quarter Master kit delivers a complete,...QTR115509124TMKSE- SKU:
- QTR115509124TMKSE
- Availability:
- Ships Same Business Day
- Weight:
- 38.65 LBS
$1,761.25 -
QA1 Driveshaft Carbon 37in Traction Twist w/o Yoke JJ-11272
QA1
$1,339.99A quality driveshaft is fundamental to consistent power delivery and longevity in dirt late model racing. This QA1 carbon driveshaft combines lightweight construction with the proven Traction Twist...QA1JJ-11272- SKU:
- QA1JJ-11272
- Availability:
- Ships Same Business Day
- Weight:
- 5.90 LBS
$1,339.99Qty in Cart: 0Quantity:Price:$1,339.99Subtotal: -
QA1 Driveshaft Carbon 35in Traction Twist w/o Yoke JJ-11270
QA1
$1,339.95A quality driveshaft is fundamental to consistent traction off the line and through the corners—especially in dirt late model racing where power transfer directly impacts lap times. The QA1...QA1JJ-11270- SKU:
- QA1JJ-11270
- Availability:
- Ships Same Business Day
- Weight:
- 5.90 LBS
$1,339.95Qty in Cart: 0Quantity:Price:$1,339.95Subtotal: -
QA1 Driveshaft Carbon 37.5in Traction Twist w/o Yoke JJ-11273
QA1
$1,339.99Dirt late model racing demands a driveshaft that can handle extreme traction loads without sacrificing weight or responsiveness. The QA1 Carbon TractionTwist delivers the rotational rigidity you need...QA1JJ-11273- SKU:
- QA1JJ-11273
- Availability:
- Ships Same Business Day
- Weight:
- 6.00 LBS
$1,339.99Qty in Cart: 0Quantity:Price:$1,339.99Subtotal: -
PEM New Stamped Floater Metric Kit 58in Center HNMK2902904
PEM
$1,342.99If you're building a high-performance rear axle assembly for serious drag racing or road course competition, a properly engineered floater kit is non-negotiable. The PEM New Stamped Floater Metric...PEMHNMK2902904- SKU:
- PEMHNMK2902904
- Availability:
- Ships Same Business Day
- Weight:
- 62.45 LBS
$1,342.99Qty in Cart: 0Quantity:Price:$1,342.99Subtotal: -
Quarter Master Bellhousing Package Ford Bert Brinn Top Mnt 315509134TM
QUARTER MASTER
$1,849.32If you're building a serious Small Block Ford engine bay with a Bert or Brinn transmission, you need a bellhousing package engineered for precision and durability—not a generic off-the-shelf solution...QTR315509134TM- SKU:
- QTR315509134TM
- Availability:
- Ships Same Business Day
- Weight:
- 27.90 LBS
- MFG Part #:
- 315509134TM
$1,849.32 -
Quarter Master Bellhousing Kit Brinn Bert w/Top Op Mount 115509124TM
QUARTER MASTER
$1,937.38Direct-drive racing demands precision engineering at every connection point—and your bellhousing is no exception. This Quarter Master clutchless bellhousing kit eliminates parasitic losses and...QTR115509124TM- SKU:
- QTR115509124TM
- Availability:
- Ships Same Business Day
- Weight:
- 28.79 LBS
- MFG Part #:
- 115509124TM
$1,937.38 -
Gleason Torsen Diff QC w/Bearings KT0100
FRANKLAND RACING
$1,669.99A quality limited-slip differential is fundamental to consistent lap times and predictable handling under load. The Gleason Torsen diff delivers torque-biasing performance without the maintenance...FRKKT0100- SKU:
- FRKKT0100
- Availability:
- Ships Same Business Day
- Weight:
- 27.48 LBS
- MFG Part #:
- KT0100
$1,669.99Qty in Cart: 0Quantity:Price:$1,669.99Subtotal: -
Winters Falcon Transmission 10 Spline Intermediate Input Shaft Aluminum Case WIN60100B
WINTERS
$1,956.99If you're running a late-model Falcon in competition, the Winters Falcon Transmission delivers the lightweight, durable performance you need in the demanding environment of the track. The aluminum...WIN60100B- SKU:
- WIN60100B
- Availability:
- Ships Same Business Day
- Weight:
- 49.30 LBS
$1,956.99 -
QA1 Driveshaft Carbon 38in Traction Twist w/o Yoke JJ-11274
QA1
$1,339.95A quality driveshaft is fundamental to transferring power reliably and maintaining traction in dirt late model racing. The QA1 Traction Twist design reduces parasitic losses and improves launch...QA1JJ-11274- SKU:
- QA1JJ-11274
- Availability:
- Ships Same Business Day
- Weight:
- 6.00 LBS
$1,339.95Qty in Cart: 0Quantity:Price:$1,339.95Subtotal: -
QA1 Driveshaft Carbon 35.5in Traction Twist w/o Yoke JJ-11271
QA1
$1,339.95A traction-twist driveshaft is essential for dirt late models that demand precise power transfer without excessive deflection under hard acceleration. The QA1 carbon construction reduces rotating...QA1JJ-11271- SKU:
- QA1JJ-11271
- Availability:
- Ships Same Business Day
- Weight:
- 5.90 LBS
$1,339.95Qty in Cart: 0Quantity:Price:$1,339.95Subtotal: -
Winters Differential Carrier 2nd Gen TrackStar Aluminum End Cap Steel 10 in Quick Change WIN3224-01
WINTERS
$1,940.99If you're running a Winters 10-inch quick change rear end, the differential carrier is your foundation for consistent power delivery and predictable handling under load. This 2nd Gen TrackStar unit...WIN3224-01- SKU:
- WIN3224-01
- Availability:
- Ships Same Business Day
- Weight:
- 24.10 LBS
- MFG Part #:
- 3224-01
$1,940.99 -
Quarter Master 5.5in Optimum Clutch SBC 3 Disc 1-5/32in x 26 Spl 37517090
QUARTER MASTER
$1,371.81If you're running a small-block Chevy in bracket racing, street performance, or high-RPM applications, you need a clutch engineered for consistent engagement and proven durability under repeated load...QTR37517090- SKU:
- QTR37517090
- Availability:
- Ships Same Business Day
- Weight:
- 9.05 LBS
- MFG Part #:
- 37517090
$1,371.81Qty in Cart: 0Quantity:Price:$1,371.81Subtotal: -
Quarter Master Bellhousing Kit Brinn Bert w/Top O/P Mount 120509124TM
QUARTER MASTER
$1,777.13If you're building a high-performance Chevy engine or swapping to a Bert/Brinn transmission, this bellhousing kit eliminates guesswork and compatibility headaches. Quarter Master's complete assembly...QTR120509124TM- SKU:
- QTR120509124TM
- Availability:
- Ships Same Business Day
- Weight:
- 29.80 LBS
- MFG Part #:
- 120509124TM
$1,777.13 -
Bert Tail Housing Ball Spline 3-BS
BERT TRANSMISSIONS
$1,399.99A quality tail housing is the foundation of a reliable Bert transmission setup—it protects your internals and maintains critical alignment under load. This complete aluminum housing kit gives you a...BER003BS- SKU:
- BER003BS
- Availability:
- Ships Same Business Day
- Weight:
- 16.90 LBS
- MFG Part #:
- 3-BS
$1,399.99
