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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- Qty in Cart
- Quantity
- Price
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Strange Oval Drive Flange Alum. 2.5in GN 5x5 & 5x4.75 ADW570
STRANGE OVAL
$150.99If you're running a Grand National hub setup with mixed wheel bolt patterns, you need a drive flange that won't compromise your axle's integrity or wheel fitment. The Strange Oval Drive Flange delivers the precision engineering required for forced...SOTADW570- SKU:
- SOTADW570
- Availability:
- Ships Same Business Day
- Weight:
- 1.80 LBS
- MFG Part #:
- ADW570
$150.99 -
Strange Oval Drive Flange Cambered 5x5 Howe / PCR ADW530
STRANGE OVAL
$327.99A properly cambered drive flange is essential for maximizing tire contact and maintaining consistent brake performance under high-load racing conditions. The Strange Oval Drive Flange delivers precision engineering with black anodized aluminum...SOTADW530- SKU:
- SOTADW530
- Availability:
- Ships Same Business Day
- Weight:
- 2.00 LBS
- MFG Part #:
- ADW530
$327.99 -
Strange Oval Steel Drive Flange Wide 5 5 Bolt Articulating ADW520
STRANGE OVAL
$279.99The Strange Oval Steel Drive Flange (ADW520) is essential for drag racing and high-performance applications where reliable axle engagement is non-negotiable. This 5-bolt Wide 5 flange delivers consistent power delivery and eliminates flex under extreme...SOTADW520- SKU:
- SOTADW520
- Availability:
- Ships Same Business Day
- Weight:
- 1.89 LBS
- MFG Part #:
- ADW520
$279.99 -
SCS Quick Change Gear Set 6 Spline 69
SCS GEARS
$178.99Quick-change gear sets are essential for racers who need to optimize performance across different track configurations without swapping entire differentials. The SCS 6-Spline design delivers reliable gear transitions with minimal downtime, letting you...SCS69- SKU:
- SCS69
- Availability:
- Ships Same Business Day
- Weight:
- 2.90 LBS
- MFG Part #:
- 69
$178.99 -
SCS Quick Change Gear Set 6 Spline 68
SCS GEARS
$178.99The SCS Quick Change Gear Set 6 Spline 68 eliminates downtime between races by allowing you to swap gear ratios in minutes without breaking down your entire differential. Whether you're fine-tuning for track conditions or maximizing acceleration across...SCS68- SKU:
- SCS68
- Availability:
- Ships Same Business Day
- Weight:
- 1.97 LBS
- MFG Part #:
- 68
$178.99 -
SCS Quick Change Gear Set 6 Spline 63
SCS GEARS
$178.99The SCS Quick Change Gear Set 6 Spline 63 eliminates the downtime and labor costs associated with traditional gear swaps, letting you dial in your final drive ratio for different track conditions without pulling the entire differential. With dual ratio...SCS63- SKU:
- SCS63
- Availability:
- Ships Same Business Day
- Weight:
- 2.65 LBS
- MFG Part #:
- 63
$178.99 -
SCS Quick Change Gear Set 6 Spline 623
SCS GEARS
$178.99Professional racing demands the ability to optimize your differential setup for varying track conditions and competition formats. The SCS Quick Change Gear Set 623 eliminates the downtime of traditional gear swaps, allowing you to change ratios in...SCS623- SKU:
- SCS623
- Availability:
- Ships Same Business Day
- Weight:
- 2.95 LBS
- MFG Part #:
- 623
$178.99 -
SCS Quick Change Gear Set 6 Spline 62
SCS GEARS
$178.99Quick-change gear sets eliminate downtime between races by allowing you to swap ratios in minutes rather than hours, keeping your competitive edge sharp across varying track conditions. The SCS 6-spline design delivers the precision engagement and...SCS62- SKU:
- SCS62
- Availability:
- Ships Same Business Day
- Weight:
- 2.50 LBS
- MFG Part #:
- 62
$178.99 -
SCS Quick Change Gear Set 6 Spline 617
SCS GEARS
$178.99Quick change gear sets are essential for racers who demand flexibility without downtime. The SCS 617 lets you swap ratios between rounds or test sessions with zero guesswork, keeping your power delivery optimized for each track condition. Built from...SCS617- SKU:
- SCS617
- Availability:
- Ships Same Business Day
- Weight:
- 2.75 LBS
- MFG Part #:
- 617
$178.99 -
SCS Quick Change Gear Set 6 Spline 616
SCS GEARS
$178.99The SCS Quick Change Gear Set 616 eliminates downtime between races by letting you swap ratios in minutes rather than hours. Built for professional racers who demand reliability under extreme conditions, this 6-spline system gives you the flexibility to...SCS616- SKU:
- SCS616
- Availability:
- Ships Same Business Day
- Weight:
- 2.95 LBS
- MFG Part #:
- 616
$178.99 -
SCS Quick Change Gear Set 6 Spline 615
SCS GEARS
$178.99Quick-change differentials are essential for racers who need to swap gear ratios between sessions without dropping the rear end. The SCS 615 set gives you two proven ratios—4.11 and 4.33—so you can optimize for acceleration on tight courses or top-end...SCS615- SKU:
- SCS615
- Availability:
- Ships Same Business Day
- Weight:
- 2.85 LBS
- MFG Part #:
- 615
$178.99 -
SCS Quick Change Gear Set 6 Spline 613
SCS GEARS
$178.99The SCS Quick Change Gear Set 6 Spline 613 eliminates costly downtime between races by letting you swap gear ratios in minutes without removing your rear end housing. Whether you're optimizing for straight-line acceleration or high-speed cornering, this...SCS613- SKU:
- SCS613
- Availability:
- Ships Same Business Day
- Weight:
- 2.72 LBS
- MFG Part #:
- 613
$178.99 -
SCS Quick Change Gear Set 6 Spline 612
SCS GEARS
$178.99Quick-change gear sets are essential for racers who demand flexibility between track conditions and competition formats without the downtime of traditional differential rebuilds. The SCS 612 delivers precision-engineered gear ratios in a 6-spline...SCS612- SKU:
- SCS612
- Availability:
- Ships Same Business Day
- Weight:
- 2.65 LBS
- MFG Part #:
- 612
$178.99 -
SCS Quick Change Gear Set 6 Spline 611
SCS GEARS
$178.99Quick-change gear sets are essential for racers who demand flexibility between track sessions and competition formats. The SCS 611 lets you swap ratios without removing the housing, cutting setup time and keeping your focus on performance. Built from...SCS611- SKU:
- SCS611
- Availability:
- Ships Same Business Day
- Weight:
- 2.85 LBS
- MFG Part #:
- 611
$178.99 -
SCS Quick Change Gear Set 6 Spline 610
SCS GEARS
$178.99Quick-change gear sets are essential for racers who demand flexibility across varying track conditions and competition formats. The SCS 610 eliminates downtime between sessions by allowing you to swap gear ratios in minutes rather than hours, keeping you...SCS610- SKU:
- SCS610
- Availability:
- Ships Same Business Day
- Weight:
- 2.65 LBS
- MFG Part #:
- 610
$178.99 -
SCS Quick Change Gear Set 43
SCS GEARS
$202.99Quick-change gear sets are essential for racers who demand flexibility without downtime. The SCS Set 43 lets you swap final drive ratios in minutes, optimizing your setup for different tracks, weather conditions, or race classes without pulling the...SCS43- SKU:
- SCS43
- Availability:
- Ships Same Business Day
- Weight:
- 4.57 LBS
- MFG Part #:
- 43
$202.99 -
SCS Quick Change Gear Set 41
SCS GEARS
$202.99Quick-change gear sets are essential for racers who need to optimize performance across different track conditions and racing formats without spending hours on rear-end swaps. The SCS Set 41 delivers two proven ratios in a single professional-grade...SCS41- SKU:
- SCS41
- Availability:
- Ships Same Business Day
- Weight:
- 4.83 LBS
- MFG Part #:
- 41
$202.99 -
SCS Quick Change Gear Set 37
SCS GEARS
$202.99Quick-change gear sets are essential for racers who demand flexibility between track conditions without breaking down the entire rear end. The SCS Set 37 delivers two proven ratios in a single package, letting you optimize performance for acceleration or...SCS37- SKU:
- SCS37
- Availability:
- Ships Same Business Day
- Weight:
- 4.83 LBS
- MFG Part #:
- 37
$202.99 -
SCS Quick Change Gear Set 36
SCS GEARS
$202.99Quick-change gear sets are essential for racers who demand flexibility without downtime. The SCS Set 36 lets you dial in your final drive ratio between two proven configurations—4.11 or 4.86—without swapping the entire differential housing. Whether...SCS36- SKU:
- SCS36
- Availability:
- Ships Same Business Day
- Weight:
- 5.03 LBS
- MFG Part #:
- 36
$202.99 -
SCS Quick Change Gear Set 33K
SCS GEARS
$202.99Quick-change gear sets are essential for racers who demand flexibility without sacrifice—swap ratios between rounds without removing the entire differential housing. The SCS 33K delivers two competition-proven ratios in a single, professional-grade...SCS33K- SKU:
- SCS33K
- Availability:
- Ships Same Business Day
- Weight:
- 5.00 LBS
- MFG Part #:
- 33K
$202.99Qty in Cart: 0Quantity:Price:$202.99Subtotal:
