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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SCS Sportsman QC Gear Set 1022
SCS GEARS
$103.99Quick-change gear sets eliminate the downtime between races by letting you swap ratios in minutes instead of hours—critical when you need to dial in your differential for different track conditions...SCS1022- SKU:
- SCS1022
- Availability:
- Ships Same Business Day
- Weight:
- 6.46 LBS
- MFG Part #:
- 1022
$103.99 -
SCS Sportsman QC Gear Set 1020
SCS GEARS
$103.99Quick-change gear sets eliminate costly downtime between rounds by letting you swap ratios in minutes without pulling the rear end. The SCS Sportsman QC 1020 delivers the flexibility competitive...SCS1020- SKU:
- SCS1020
- Availability:
- Ships Same Business Day
- Weight:
- 6.40 LBS
- MFG Part #:
- 1020
$103.99Qty in Cart: 0Quantity:Price:$103.99Subtotal: -
SCS Sportsman QC Gear Set 102
SCS GEARS
$103.99Quick-change gear sets eliminate the downtime between races by letting you swap ratios in minutes rather than hours. The SCS Sportsman QC Gear Set 102 gives you two proven ratios—4.11 and 4.86—so you...SCS102- SKU:
- SCS102
- Availability:
- Ships Same Business Day
- Weight:
- 6.33 LBS
- MFG Part #:
- 102
$103.99 -
SCS Sportsman QC Gear Set 1019
SCS GEARS
$103.99Quick-change gear sets eliminate costly downtime between races by allowing you to swap ratios in minutes rather than hours—critical when track conditions demand precision tuning. The SCS Sportsman QC...SCS1019- SKU:
- SCS1019
- Availability:
- Ships Same Business Day
- Weight:
- 6.37 LBS
- MFG Part #:
- 1019
$103.99 -
SCS Sportsman QC Gear Set 1018
SCS GEARS
$103.99Quick-change gear sets eliminate downtime between races by letting you swap ratios in minutes rather than hours. The SCS Sportsman QC 1018 delivers two competition-ready ratios in a single package,...SCS1018- SKU:
- SCS1018
- Availability:
- Ships Same Business Day
- Weight:
- 6.36 LBS
- MFG Part #:
- 1018
$103.99 -
SCS Sportsman QC Gear Set 1016
SCS GEARS
$103.99Quick-change gear sets are essential for racers who need to dial in their rear-end ratios between rounds or track sessions without breaking down the entire differential. The SCS Sportsman QC Gear Set...SCS1016- SKU:
- SCS1016
- Availability:
- Ships Same Business Day
- Weight:
- 6.48 LBS
- MFG Part #:
- 1016
$103.99 -
SCS Sportsman QC Gear Set 1015K
SCS GEARS
$103.99Quick-change gear sets eliminate downtime between rounds by letting you swap ratios in minutes rather than hours. The SCS Sportsman QC 1015K delivers two proven ratios in a single, easy-to-change...SCS1015K- SKU:
- SCS1015K
- Availability:
- Ships Same Business Day
- Weight:
- 6.28 LBS
- MFG Part #:
- 1015K
$103.99 -
SCS Sportsman QC Gear Set 1014K
SCS GEARS
$103.99Quick-change gear sets eliminate downtime between races by allowing you to swap ratios in minutes rather than hours—critical when you're running multiple classes or adjusting for track conditions...SCS1014K- SKU:
- SCS1014K
- Availability:
- Ships Same Business Day
- Weight:
- 6.46 LBS
- MFG Part #:
- 1014K
$103.99 -
SCS Sportsman QC Gear Set 1013
SCS GEARS
$103.99Quick-change gear sets eliminate downtime between races and test sessions, letting you dial in your setup without pulling the entire differential. The SCS Sportsman QC 1013 delivers the flexibility...SCS1013- SKU:
- SCS1013
- Availability:
- Ships Same Business Day
- Weight:
- 6.41 LBS
- MFG Part #:
- 1013
$103.99 -
SCS Sportsman QC Gear Set 1012
SCS GEARS
$103.99Quick-change gear sets are essential for racers who need to dial in their setup across multiple track configurations without pulling the entire differential. The SCS Sportsman QC Gear Set 1012...SCS1012- SKU:
- SCS1012
- Availability:
- Ships Same Business Day
- Weight:
- 6.30 LBS
- MFG Part #:
- 1012
$103.99 -
SCS Sportsman QC Gear Set 1011
SCS GEARS
$103.99Quick-change gear sets are essential for racers who need to swap ratios between rounds or test sessions without removing the entire differential. The SCS Sportsman QC system delivers proven...SCS1011- SKU:
- SCS1011
- Availability:
- Ships Same Business Day
- Weight:
- 6.37 LBS
- MFG Part #:
- 1011
$103.99 -
SCS Sportsman QC Gear Set 1010
SCS GEARS
$103.99The SCS Sportsman QC Gear Set 1010 lets you dial in your final drive ratio without swapping axles—critical for Sportsman-class racers who need to optimize performance across different track...SCS1010- SKU:
- SCS1010
- Availability:
- Ships Same Business Day
- Weight:
- 6.49 LBS
- MFG Part #:
- 1010
$103.99Qty in Cart: 0Quantity:Price:$103.99Subtotal: -
SCS Quick Change Gear Set 10
SCS GEARS
$204.99Professional drag racing demands precise gear selection to maximize acceleration across different track conditions and weight configurations. The SCS Quick Change Gear Set 10 lets you swap ratios...SCS10- SKU:
- SCS10
- Availability:
- Ships Same Business Day
- Weight:
- 5.06 LBS
- MFG Part #:
- 10
$204.99 -
SCS Quick Change Gear Set 09K
SCS GEARS
$204.99The SCS Quick Change Gear Set 09K eliminates downtime between track sessions by allowing you to swap final drive ratios in minutes without removing the rear end from your vehicle. Whether you're...SCS09K- SKU:
- SCS09K
- Availability:
- Ships Same Business Day
- Weight:
- 5.24 LBS
- MFG Part #:
- 09K
$204.99 -
SCS Quick Change Gear Set 9
SCS GEARS
$204.99Quick-change gear sets are essential for competitive racers who need to dial in their final drive ratio between rounds without breaking down the entire differential. The SCS Set 9 delivers two proven...SCS09- SKU:
- SCS09
- Availability:
- Ships Same Business Day
- Weight:
- 5.32 LBS
- MFG Part #:
- 9
$204.99 -
SCS Quick Change Gear Set 08K
SCS GEARS
$204.99Professional racers and serious bracket racers know that quick gear changes can make or break a competition season. The SCS Quick Change Gear Set 08K eliminates the need to pull your differential...SCS08K- SKU:
- SCS08K
- Availability:
- Ships Same Business Day
- Weight:
- 5.40 LBS
- MFG Part #:
- 08K
$204.99 -
SCS Quick Change Gear Set 8
SCS GEARS
$204.99Quick-change gear sets are essential for racers who demand flexibility without sacrificing performance or reliability. The SCS Set 8 delivers dual ratio options—4.11 and 4.86—allowing you to dial in...SCS08- SKU:
- SCS08
- Availability:
- Ships Same Business Day
- Weight:
- 5.17 LBS
- MFG Part #:
- 8
$204.99 -
SCS Quick Change Gear Set 07K
SCS GEARS
$204.99Quick change gear sets are essential for racers who need to dial in the perfect ratio for different tracks or conditions without complete differential disassembly. The SCS 07K eliminates downtime...SCS07K- SKU:
- SCS07K
- Availability:
- Ships Same Business Day
- Weight:
- 5.30 LBS
- MFG Part #:
- 07K
$204.99 -
SCS Quick Change Gear Set 7
SCS GEARS
$204.99Quick-change gear sets eliminate the need for complete differential teardowns between races, saving hours of labor and reducing downtime. The SCS Set 7 delivers two distinct ratio combinations in a...SCS07- SKU:
- SCS07
- Availability:
- Ships Same Business Day
- Weight:
- 5.22 LBS
- MFG Part #:
- 7
$204.99 -
SCS Quick Change Gear Set 6
SCS GEARS
$204.99Quick-change gear sets eliminate downtime between races by letting you swap ratios in minutes instead of hours. Whether you're fine-tuning for different track conditions or running multiple events,...SCS06- SKU:
- SCS06
- Availability:
- Ships Same Business Day
- Weight:
- 4.60 LBS
- MFG Part #:
- 6
$204.99
