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
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- Price
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Winters Quick Change Gear Set 8500 Series 10 Spline 4.12 4.75 3.57 4.86 5.60 4.21 Steel WIN8517
WINTERS
$110.99The Winters Quick Change Gear Set 8500 Series Set 17 is engineered for high-performance racing applications, offering versatile gear ratios to optimize vehicle performance. Crafted from durable steel, this gear set ensures longevity and reliability under...WIN8517- SKU:
- WIN8517
- Availability:
- Ships Same Business Day
- Weight:
- 6.49 LBS
- MFG Part #:
- 8517
$110.99 -
Winters Quick Change Gear Set 8500 Series 10 Spline 4.12 4.86 Steel WIN8516
WINTERS
$110.99The Winters Quick Change Gear Set 8500 Series 10 Spline 4.12 4.86 Steel WIN8516 is engineered for high-performance racing applications, offering versatility and durability. This gear set allows for quick ratio changes, enabling racers to fine-tune their...WIN8516- SKU:
- WIN8516
- Availability:
- Ships Same Business Day
- Weight:
- 6.55 LBS
- MFG Part #:
- 8516
$110.99 -
Winters Quick Change Gear Set 10 Spline 4.12 4.34 3.91 4.86 5.11 4.62 WIN8515A
WINTERS
$110.99The Winters Quick Change Gear Set is designed for high-performance racing applications, offering versatility and durability. This 10-spline gear set features 4.12 ratios of 4.32 and 3.93, as well as 4.86 ratios of 5.09 and 4.64, all crafted from...WIN8515A- SKU:
- WIN8515A
- Availability:
- Ships Same Business Day
- Weight:
- 6.45 LBS
- MFG Part #:
- 8515A
$110.99 -
Winters Quick Change Gear Set 8500 Series 10 Spline 4.12 4.34 3.91 4.86 5.11 4.62 Steel WIN8515
WINTERS
$110.99The Winters Quick Change Gear Set 8500 Series Set 15 is engineered for high-performance racing applications, offering versatile gear ratios to optimize vehicle performance. Constructed from durable steel, this gear set ensures longevity and reliability...WIN8515- SKU:
- WIN8515
- Availability:
- Ships Same Business Day
- Weight:
- 6.43 LBS
- MFG Part #:
- 8515
$110.99 -
Winters Quick Change Gear Set 8500 Series 10 Spline 4.12 5.77 2.94 4.86 6.80 3.47 WIN8514A
WINTERS
$110.99The Winters Quick Change Gear Set 8500 Series 10 Spline 4.12 5.77 2.94 4.86 6.80 3.47 WIN8514A is engineered for high-performance racing applications, offering versatile gear ratios to optimize vehicle performance across various track conditions...WIN8514A- SKU:
- WIN8514A
- Availability:
- Ships Same Business Day
- Weight:
- 6.65 LBS
- MFG Part #:
- 8514A
$110.99 -
Winters Quick Change Gear Set 8500 Series 10 Spline 4.12 4.86 Steel WIN8514
WINTERS
$110.99The Winters Quick Change Gear Set 8500 Series 10 Spline 4.12 4.86 Steel WIN8514 is engineered for high-performance racing applications, offering versatile gear ratios to optimize vehicle performance across various track conditions. Crafted from durable...WIN8514- SKU:
- WIN8514
- Availability:
- Ships Same Business Day
- Weight:
- 6.63 LBS
- MFG Part #:
- 8514
$110.99 -
Winters Quick Change Gear Set 8500 Series 10 Spline 4.12 5.15 3.30 4.86 6.07 3.89 Steel WIN8513
WINTERS
$110.99The Winters Quick Change Gear Set 8500 Series Set 13 is engineered for high-performance racing applications, offering versatile gear ratios to optimize vehicle performance. Crafted from premium steel, these gears ensure durability and reliability under...WIN8513- SKU:
- WIN8513
- Availability:
- Ships Same Business Day
- Weight:
- 6.50 LBS
- MFG Part #:
- 8513
$110.99 -
Winters Quick Change Gear Set 8500 Series 10 Spline 4.12 Ratio 4.60 3.69 4.86 Ratio 5.42 4.36 Steel WIN8512
WINTERS
$110.99The Winters Quick Change Gear Set 8500 Series Set 12 is engineered for high-performance racing applications, offering versatile gear ratios to optimize vehicle performance. Constructed from durable SAE 8620 steel, these gears ensure longevity and...WIN8512- SKU:
- WIN8512
- Availability:
- Ships Same Business Day
- Weight:
- 6.42 LBS
- MFG Part #:
- 8512
$110.99 -
Winters Quick Change Gear Set 10 Spline 22/27 Teeth 4.12 Ratio 5.06/3.36 4.86 Ratio 5.96/3.96 WIN8511
WINTERS
$110.99The Winters Quick Change Gear Set WIN8511 is engineered for high-performance racing applications, offering versatile gear ratios to optimize vehicle performance. Designed for quick and efficient gear changes, this set ensures durability and reliability...WIN8511- SKU:
- WIN8511
- Availability:
- Ships Same Business Day
- Weight:
- 6.50 LBS
- MFG Part #:
- 8511
$110.99 -
Winters Quick Change Gear Set 10A 10 Spline 22/30 Teeth 8500 Series WIN8510A
WINTERS
$110.99The Winters Quick Change Gear Set 10A is engineered for high-performance racing applications, offering versatility and durability. Designed for 10-spline differentials, this gear set features 22/30 teeth and is part of the 8500 Series, ensuring...WIN8510A- SKU:
- WIN8510A
- Availability:
- Ships Same Business Day
- Weight:
- 6.57 LBS
- MFG Part #:
- 8510A
$110.99 -
Winters Quick Change Gear Set 8500 Series 10 Spline 4.12 Ratio 5.57 3.05 4.86 Ratio 6.57 3.59 Steel WIN8510
WINTERS
$110.99The Winters Quick Change Gear Set 8500 Series offers versatile gear ratios for high-performance racing applications. Crafted from durable steel, this set ensures reliability and longevity on the track. **Features:** - Compatible with 10-spline quick...WIN8510- SKU:
- WIN8510
- Availability:
- Ships Same Business Day
- Weight:
- 6.62 LBS
- MFG Part #:
- 8510
$110.99 -
Winters Quick Change Gear Set 8500 Series 10 Spline 4.12 4.94 3.43 4.86 5.83 4.05 WIN8509A
WINTERS
$110.99The Winters Quick Change Gear Set 8500 Series 10 Spline 4.12 4.94 3.43 4.86 5.83 4.05 WIN8509A is engineered for high-performance racing applications, offering versatile gear ratios to optimize vehicle performance across various track conditions...WIN8509A- SKU:
- WIN8509A
- Availability:
- Ships Same Business Day
- Weight:
- 6.50 LBS
- MFG Part #:
- 8509A
$110.99 -
Winters Quick Change Gear Set 8500 Series 10 Spline 4.12 4.99 3.40 4.86 5.88 4.02 Steel WIN8509
WINTERS
$110.99The Winters Quick Change Gear Set 8500 Series Set 9 is engineered for high-performance racing applications, offering versatile gear ratios to optimize vehicle performance. Constructed from durable steel, this gear set ensures longevity and reliability...WIN8509- SKU:
- WIN8509
- Availability:
- Ships Same Business Day
- Weight:
- 6.47 LBS
- MFG Part #:
- 8509
$110.99 -
Winters Quick Change Gear Set 8500 Series 10 Spline 4.12 Ratio 4.84 3.51 4.86 Ratio 5.70 4.14 Steel WIN8508A
WINTERS
$110.99The Winters Quick Change Gear Set 8500 Series 10 Spline 4.12 Ratio 4.84 3.51 4.86 Ratio 5.70 4.14 Steel WIN8508A is engineered for high-performance racing applications, offering versatile gear ratios to optimize vehicle performance across various track...WIN8508A- SKU:
- WIN8508A
- Availability:
- Ships Same Business Day
- Weight:
- 6.47 LBS
- MFG Part #:
- 8508A
$110.99 -
Winters Quick Change Gear Set 8500 Series 10 Spline Steel 4.12 4.87 3.49 4.86 5.74 4.11 WIN8508
WINTERS
$110.99The Winters Quick Change Gear Set 8500 Series Set 8 is engineered for high-performance racing applications, offering versatile gear ratios to optimize vehicle performance. Constructed from durable steel, this gear set ensures longevity and reliability...WIN8508- SKU:
- WIN8508
- Availability:
- Ships Same Business Day
- Weight:
- 6.47 LBS
- MFG Part #:
- 8508
$110.99 -
Winters Quick Change Gear Set 8500 Series 10 Spline 4.12 Ratio 4.71 3.61 4.86 Ratio 5.55 4.25 Steel WIN8507A
WINTERS
$110.99This Winters Quick Change Gear Set from the 8500 Series is designed for high-performance applications, offering versatility with multiple gear ratios. Crafted from durable steel, it ensures longevity and reliability on the track. **Features:** -...WIN8507A- SKU:
- WIN8507A
- Availability:
- Ships Same Business Day
- Weight:
- 6.45 LBS
- MFG Part #:
- 8507A
$110.99 -
Winters Quick Change Gear Set 8500 Series 10 Spline 4.12 Ratio 4.66 3.65 4.86 Ratio 5.49 4.30 WIN8507
WINTERS
$110.99This Winters Quick Change Gear Set from the 8500 Series is designed for high-performance racing applications. Featuring a 10-spline configuration, it offers versatile gear ratios to suit various track conditions. Crafted from durable steel, this gear set...WIN8507- SKU:
- WIN8507
- Availability:
- Ships Same Business Day
- Weight:
- 6.43 LBS
- MFG Part #:
- 8507
$110.99 -
Winters Quick Change Gear Set 8500 Series 10 Spline 4.12 Ratio 4.48 3.79 4.86 Ratio 5.28 4.47 Steel WIN8506
WINTERS
$110.99The Winters Quick Change Gear Set 8500 Series Set 6 is engineered for high-performance racing applications, offering versatile gear ratios to optimize vehicle performance. Constructed from durable steel, this gear set ensures longevity and reliability...WIN8506- SKU:
- WIN8506
- Availability:
- Ships Same Business Day
- Weight:
- 6.42 LBS
- MFG Part #:
- 8506
$110.99 -
Winters Quick Change Gear Set 8500 Series 10 Spline 4.29 3.96 5.06 4.67 Steel WIN8505
WINTERS
$110.99The Winters Quick Change Gear Set 8500 Series Set 5 is engineered for high-performance racing applications, offering versatile gear ratios to optimize vehicle performance. Crafted from durable steel, this gear set ensures longevity and reliability under...WIN8505- SKU:
- WIN8505
- Availability:
- Ships Same Business Day
- Weight:
- 6.41 LBS
- MFG Part #:
- 8505
$110.99 -
Winters Quick Change Gear Set 8500 Series 10 Spline 4.12 5.26 3.22 4.86 6.21 3.80 Steel WIN8504A
WINTERS
$110.99The Winters Quick Change Gear Set 8500 Series 10 Spline 4.12 5.26 3.22 4.86 6.21 3.80 Steel WIN8504A is engineered for high-performance racing applications, offering versatile gear ratios to optimize vehicle performance across various track conditions...WIN8504A- SKU:
- WIN8504A
- Availability:
- Ships Same Business Day
- Weight:
- 6.49 LBS
- MFG Part #:
- 8504A
$110.99