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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Winters Pinion Retaining Spacer Steel Quick Change WIN5020
WINTERS
$26.99The Pinion Assy Retaining Ring is a steel spacer designed for Winters Quick Change rear ends, ensuring secure pinion assembly retention. This durable component is sold individually, providing a reliable solution for maintaining optimal performance in...WIN5020- SKU:
- WIN5020
- Availability:
- Ships Same Business Day
- Weight:
- 0.16 LBS
- MFG Part #:
- 5020
$26.99 -
Winters 10" Quick Change Lower Shaft Seal Plate 0.750" Thick Double Lip Seal Aluminum 5018
WINTERS
$65.99This Winters 10" Quick Change Lower Shaft Seal Plate is designed to provide a secure and reliable seal for your racing differential. Constructed from durable aluminum, it features a 0.750-inch thickness and includes a double lip seal for enhanced...WIN5018- SKU:
- WIN5018
- Availability:
- Ships Same Business Day
- Weight:
- 1.06 LBS
- MFG Part #:
- 5018
$65.99 -
Winters heat treated lower shaft 10/10 spline 19.69 in long steel open drive WIN5003
WINTERS
$159.99The Winters Heat Treated Lower Shaft is a precision-engineered component designed for high-performance racing applications. Manufactured from high-quality steel, this shaft features a 10/10 spline configuration and measures 19.69 inches in length,...WIN5003- SKU:
- WIN5003
- Availability:
- Ships Same Business Day
- Weight:
- 5.24 LBS
- MFG Part #:
- 5003
$159.99 -
Winters Standard Lower Shaft 2nd Gen 10/10 Spline 18.59 in Open Drive Steel WIN4951
WINTERS
$156.99The Winters Standard Lower Shaft 2nd Gen. is a precision-engineered component designed for high-performance racing applications. Measuring 18.59 inches in length, this steel shaft features a 10/10 spline configuration and is compatible with Winters...WIN4951- SKU:
- WIN4951
- Availability:
- Ships Same Business Day
- Weight:
- 4.95 LBS
- MFG Part #:
- 4951
$156.99 -
Winters Gear Cover Bolt Sprint Billet 10-Bolt Ball Bearings Aluminum Black Anodized WIN4873
WINTERS
$332.99The Winters Gear Cover Bolt Sprint Billet w/O-ring is a high-performance gear cover designed for sprint racing applications. Constructed from durable aluminum and finished with a black anodized coating, this cover ensures longevity and resistance to wear...WIN4873- SKU:
- WIN4873
- Availability:
- Ships Same Business Day
- Weight:
- 4.73 LBS
- MFG Part #:
- 4873
$332.99 -
Winters Quick Change Gear Set 4400 Series 6 Spline 1" Wide Set 25 WIN4425
WINTERS
$91.99The Winters Quick Change Gear Set 4400 Series Set 25 is engineered for high-performance racing applications, offering versatility and durability. Designed with a 6-spline configuration and a 1-inch width, this steel gear set provides reliable power...WIN4425- SKU:
- WIN4425
- Availability:
- Ships Same Business Day
- Weight:
- 3.55 LBS
- MFG Part #:
- 4425
$91.99 -
Winters Quick Change Gear Set 4400 Series 6 Spline 4.11 4.88 Steel WIN4424
WINTERS
$91.99The Winters Quick Change Gear Set 4400 Series 6 Spline 4.11 4.88 Steel WIN4424 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...WIN4424- SKU:
- WIN4424
- Availability:
- Ships Same Business Day
- Weight:
- 3.58 LBS
- MFG Part #:
- 4424
$91.99 -
Winters Quick Change Gear Set 4400 Series 6 Spline 4.11 4.88 Steel WIN4423
WINTERS
$91.99The Winters Quick Change Gear Set 4400 Series 6 Spline 4.11 4.88 Steel WIN4423 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...WIN4423- SKU:
- WIN4423
- Availability:
- Ships Same Business Day
- Weight:
- 3.55 LBS
- MFG Part #:
- 4423
$91.99 -
Winters Quick Change Gear Set 4400 Series 6 Spline 4.11 4.88 Steel WIN4422
WINTERS
$91.99The Winters Quick Change Gear Set 4400 Series 6 Spline 4.11 4.88 Steel WIN4422 is engineered for high-performance racing applications, offering versatility and durability. This gear set allows for quick ratio changes, enabling racers to adapt to varying...WIN4422- SKU:
- WIN4422
- Availability:
- Ships Same Business Day
- Weight:
- 3.56 LBS
- MFG Part #:
- 4422
$91.99 -
Winters Quick Change Gear Set 4400 Series 6 Spline 4.11 6.96 2.43 4.88 8.26 2.88 Steel WIN4418
WINTERS
$91.99The Winters Quick Change Gear Set 4400 Series Set 18 is engineered for high-performance racing applications, offering versatile gear ratios to optimize vehicle performance. Crafted from durable steel, this 6-spline gear set ensures longevity and...WIN4418- SKU:
- WIN4418
- Availability:
- Ships Same Business Day
- Weight:
- 3.69 LBS
- MFG Part #:
- 4418
$91.99 -
Winters Quick Change Gear Set 4400 Series 6 Spline 4.11 4.88 Steel WIN4417
WINTERS
$91.99The Winters Quick Change Gear Set 4400 Series 6 Spline 4.11 4.88 Steel WIN4417 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...WIN4417- SKU:
- WIN4417
- Availability:
- Ships Same Business Day
- Weight:
- 3.76 LBS
- MFG Part #:
- 4417
$91.99 -
Winters Quick Change Gear Set 4400 Series 6 Spline 4.11 4.88 Ratios Steel WIN4416
WINTERS
$91.99The Winters Quick Change Gear Set 4400 Series 6 Spline 4.11 4.88 Ratios Steel WIN4416 is engineered for high-performance racing applications, offering versatility and durability. This gear set allows for quick ratio changes, enabling racers to fine-tune...WIN4416- SKU:
- WIN4416
- Availability:
- Ships Same Business Day
- Weight:
- 3.67 LBS
- MFG Part #:
- 4416
$91.99 -
Winters Quick Change Gear Set 4400 Series 6 Spline 4.11 4.88 Steel WIN4415
WINTERS
$91.99The Winters Quick Change Gear Set 4400 Series 6 Spline 4.11 4.88 Steel WIN4415 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...WIN4415- SKU:
- WIN4415
- Availability:
- Ships Same Business Day
- Weight:
- 3.65 LBS
- MFG Part #:
- 4415
$91.99Qty in Cart: 0Quantity:Price:$91.99Subtotal: -
Winters Quick Change Gear Set 4400 Series 6 Spline 4.11 4.88 Steel WIN4414
WINTERS
$91.99The Winters Quick Change Gear Set 4400 Series 6 Spline 4.11 4.88 Steel WIN4414 is engineered for high-performance racing applications, offering versatility and durability. This gear set allows for quick ratio changes, enabling racers to adapt to varying...WIN4414- SKU:
- WIN4414
- Availability:
- Ships Same Business Day
- Weight:
- 3.63 LBS
- MFG Part #:
- 4414
$91.99 -
Winters Quick Change Gear Set 4400 Series 6 Spline 4.11 6.46 2.62 4.88 7.67 3.11 Steel WIN4414
WINTERS
$91.99The Winters Quick Change Gear Set 4400 Series offers versatile gear ratios for high-performance racing applications. Crafted from durable steel, this set ensures longevity and reliability on the track. **Features:** - Compatible with 6-spline quick...WIN4413- SKU:
- WIN4413
- Availability:
- Ships Same Business Day
- Weight:
- 3.63 LBS
- MFG Part #:
- 4413
$91.99 -
Winters Quick Change Gear Set 4400 Series 6 Spline Steel Set 12 4.11 4.88 WIN4412
WINTERS
$91.99The Winters Quick Change Gear Set 4400 Series Set 12 is engineered for high-performance racing applications, offering versatility and durability. Designed with a 6-spline configuration, this steel gear set provides reliable power transfer and quick gear...WIN4412- SKU:
- WIN4412
- Availability:
- Ships Same Business Day
- Weight:
- 3.69 LBS
- MFG Part #:
- 4412
$91.99 -
Winters Quick Change Gear Set 4400 Series 6 Spline 4.11 4.88 Steel WIN4411
WINTERS
$91.99The Winters Quick Change Gear Set 4400 Series 6 Spline 4.11 4.88 Steel WIN4411 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...WIN4411- SKU:
- WIN4411
- Availability:
- Ships Same Business Day
- Weight:
- 3.60 LBS
- MFG Part #:
- 4411
$91.99 -
Winters Quick Change Gear Set 4400 Series 6 Spline 4.11 4.88 Steel WIN4410
WINTERS
$91.99The Winters Quick Change Gear Set 4400 Series 6 Spline 4.11 4.88 Steel WIN4410 is engineered for high-performance racing applications, offering versatility and durability. This gear set allows for quick ratio changes, enabling racers to adapt to varying...WIN4410- SKU:
- WIN4410
- Availability:
- Ships Same Business Day
- Weight:
- 3.60 LBS
- MFG Part #:
- 4410
$91.99 -
Winters Quick Change Gear Set 4400 Series 6 Spline Steel 4.11 5.91 2.86 4.88 7.02 3.39 WIN4409
WINTERS
$91.99The Winters Quick Change Gear Set 4400 Series is engineered for high-performance racing applications, offering versatility and durability. This steel gear set features a 6-spline design and includes ratios of 4.11 with 5.91/2.86 and 4.88 with 7.02/3.39,...WIN4409- SKU:
- WIN4409
- Availability:
- Ships Same Business Day
- Weight:
- 3.58 LBS
- MFG Part #:
- 4409
$91.99 -
Winters Quick Change Gear Set 4400 Series 6 Spline 4.11 4.88 Steel WIN4408
WINTERS
$91.99The Winters Quick Change Gear Set 4400 Series 6 Spline 4.11 4.88 Steel WIN4408 is engineered for high-performance racing applications, offering versatility and durability. This steel gear set provides two distinct gear ratios, 4.11 and 4.88, each with...WIN4408- SKU:
- WIN4408
- Availability:
- Ships Same Business Day
- Weight:
- 3.62 LBS
- MFG Part #:
- 4408
$91.99