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 4400 Series 6 Spline 4.11 4.88 Steel WIN4415
WINTERS
$91.99Track performance demands the ability to adapt—and the Winters Quick Change Gear Set 4400 Series gives you that advantage. Swap ratios between rounds without breaking down your differential, letting you dial in the perfect gearing for each track...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
$91.99Track conditions change—your gear ratios shouldn't be locked in. The Winters Quick Change Gear Set 4400 Series lets you swap ratios between rounds without breaking down your differential, keeping you competitive across varying surface conditions and...WIN4414- SKU:
- WIN4414
- Availability:
- Ships Same Business Day
- Weight:
- 3.63 LBS
- MFG Part #:
- 4414
$91.99Qty in Cart: 0Quantity:Price:$91.99Subtotal: -
Winters Quick Change Gear Set 4400 Series 6 Spline 4.11 6.46 2.62 4.88 7.67 3.11 Steel WIN4414
WINTERS
$91.99Track conditions and racing classes demand different gear ratios—and swapping them shouldn't require a trip to the machine shop. The Winters 4400 Series Quick Change Gear Set lets you dial in your setup between rounds with a simple bolt-on swap, giving...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
$91.99Track performance demands quick adaptability, and the Winters 4400 Series Quick Change Gear Set delivers exactly that. Swap ratios between sessions without breaking down your rear end—critical for optimizing acceleration, top speed, or fuel economy...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
$91.99Quick ratio changes are essential for competitive racing—track conditions shift, and your gear setup needs to keep pace. The Winters 4400 Series Quick Change Gear Set eliminates downtime between runs, letting you dial in the perfect ratio for...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
$91.99Track conditions change, but your gear ratios shouldn't limit your performance. The Winters Quick Change Gear Set 4400 Series lets you swap ratios between rounds without pulling the differential, giving you the flexibility to optimize acceleration and...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
$91.99Quick-change gear sets are essential for racers who demand flexibility without sacrificing performance. The Winters 4400 Series allows you to swap ratios between rounds or test sessions—critical for optimizing launch characteristics and top-end...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
$91.99If you're running a Winters quick change rear end, swapping gear ratios between rounds is non-negotiable for competitive racing. This steel gear set gives you two proven ratios—4.11 for acceleration-focused tracks and 4.88 for high-speed circuits—without...WIN4408- SKU:
- WIN4408
- Availability:
- Ships Same Business Day
- Weight:
- 3.62 LBS
- MFG Part #:
- 4408
$91.99 -
Winters Quick Change Gear Set 4400 Series 6 Spline 4.11 5.55 3.04 4.88 6.59 3.61 Steel WIN4407
WINTERS
$91.99If you're serious about drag racing or road course competition, gear selection directly impacts your acceleration, top speed, and overall ET. The Winters 4400 Series Quick Change Set 7 eliminates guesswork by offering four proven ratio...WIN4407- SKU:
- WIN4407
- Availability:
- Ships Same Business Day
- Weight:
- 3.60 LBS
- MFG Part #:
- 4407
$91.99 -
Winters Quick Change Gear Set 4400 Series 6 Spline 4.11 5.28 3.20 4.88 6.27 3.80 Steel WIN4406
WINTERS
$91.99If you're running a quick-change rear end on the track, gear selection can make or break your performance. The Winters 4400 Series gives you multiple ratio options—4.11, 4.88, and their corresponding combinations—so you can dial in the perfect setup for...WIN4406- SKU:
- WIN4406
- Availability:
- Ships Same Business Day
- Weight:
- 3.58 LBS
- MFG Part #:
- 4406
$91.99 -
Winters Quick Change Gear Set 4400 Series 6 Spline 4.11 5.19 3.25 4.88 6.16 3.86 Steel WIN4405A
WINTERS
$91.99Quick change gear sets are essential for racers who demand flexibility across multiple track configurations without the downtime of traditional differential swaps. The Winters 4400 Series delivers four distinct ratio combinations in a single package,...WIN4405A- SKU:
- WIN4405A
- Availability:
- Ships Same Business Day
- Weight:
- 3.56 LBS
- MFG Part #:
- 4405A
$91.99 -
Winters Quick Change Gear Set 4400 Series 6 Spline 4.11 5.09 3.32 4.88 6.04 3.94 Steel WIN4405
WINTERS
$91.99If you're running a quick change rear end setup, gear selection directly impacts your launch characteristics, top-end speed, and overall performance consistency across different racing conditions. The Winters 4400 Series gives you two proven ratio...WIN4405- SKU:
- WIN4405
- Availability:
- Ships Same Business Day
- Weight:
- 3.57 LBS
- MFG Part #:
- 4405
$91.99 -
Winters Quick Change Gear Set 4400 Series 6 Spline 4.11 4.88 Ratios Steel WIN4404
WINTERS
$91.99If you're running a quick change rear end and need gear ratios that adapt to different track conditions and fuel types, the Winters 4400 Series delivers the flexibility serious racers demand. With dual ratio configurations (4.11 and 4.88), you can dial...WIN4404- SKU:
- WIN4404
- Availability:
- Ships Same Business Day
- Weight:
- 3.54 LBS
- MFG Part #:
- 4404
$91.99 -
Winters Quick Change Gear Set 4400 Series 6 Spline 4.11 4.88 Ratios Steel WIN4403A
WINTERS
$94.99When track conditions change between qualifying and race day, your gear ratio needs to adapt—and that's exactly what the Winters Quick Change Gear Set 4400 Series delivers. By offering both 4.11 and 4.88 ratios in a single steel set, you can dial in your...WIN4403A- SKU:
- WIN4403A
- Availability:
- Ships Same Business Day
- Weight:
- 3.54 LBS
- MFG Part #:
- 4403A
$94.99 -
Winters Quick Change Gear Set 4400 Series 6 Spline 4.11 4.29 3.94 4.88 5.09 4.68 Steel WIN4402
WINTERS
$91.99If you're serious about drag racing or bracket racing, gear ratio selection directly impacts your launch characteristics, top-end performance, and ET consistency. The Winters 4400 Series Quick Change Gear Set eliminates the guesswork by giving you two...WIN4402- SKU:
- WIN4402
- Availability:
- Ships Same Business Day
- Weight:
- 3.54 LBS
- MFG Part #:
- 4402
$91.99 -
Winters Quick Change Gear Set 4400 Series 6 Spline 4.11 4.88 Steel WIN4401
WINTERS
$91.99If you're running a Winters 4400 Series quick change rear end, swapping gear ratios between rounds shouldn't require a complete teardown. This gear set gives you two proven ratios—4.11 for acceleration-focused tracks and 4.88 for high-speed circuits—so...WIN4401- SKU:
- WIN4401
- Availability:
- Ships Same Business Day
- Weight:
- 3.48 LBS
- MFG Part #:
- 4401
$91.99 -
Winters Gear Cover Integral Pump Sprint 10 Bolt Aluminum Natural Quick Change WIN3792-01
WINTERS
$348.99If you're running a Winters Quick Change rear end in sprint competition, gear cover performance directly impacts lubrication efficiency and heat management during hard acceleration. This integral pump design ensures consistent oil delivery to critical...WIN3792-01- SKU:
- WIN3792-01
- Availability:
- Ships Same Business Day
- Weight:
- 5.50 LBS
- MFG Part #:
- 3792-01
$348.99 -
Winters Gear Cover Big Bearing Sprint Center 10-Bolt Ball Bearings Aluminum Natural WIN3736
WINTERS
$239.99If you're running a sprint car on the Winters Quick Change platform, gear cover reliability directly impacts your consistency on the track. This aluminum gear cover eliminates guesswork with its purpose-built design and ball bearing assembly, allowing...WIN3736- SKU:
- WIN3736
- Availability:
- Ships Same Business Day
- Weight:
- 4.84 LBS
- MFG Part #:
- 3736
$239.99 -
Winters 1-1/4" 10-Spline Lower Shaft Yoke with Integral Spacer 3533
WINTERS
$54.99If you're running a Sprint Center or V8 Quick Change rear end, you need a lower shaft yoke that matches the precision of your drivetrain. The Winters 3533 delivers the exact fitment and durability required for high-RPM racing applications, eliminating...WIN3533- SKU:
- WIN3533
- Availability:
- Ships Same Business Day
- Weight:
- 2.09 LBS
- MFG Part #:
- 3533
$54.99 -
Winters aluminum axle tube 2-7/8 wide 5 for Pro Eliminator 5X5 28-1/16 in long 3 in OD straight 1 piece 3246-28.062
WINTERS
$179.99If you're running a Pro Eliminator 5X5 rear end, you need an axle tube that can handle the demands of competition-level racing without adding unnecessary weight. This Winters aluminum axle tube delivers the structural integrity and precise fitment...WIN3246-28.062- SKU:
- WIN3246-28.062
- Availability:
- Ships Same Business Day
- Weight:
- 2.48 LBS
- MFG Part #:
- 3246-28.062 OAL
$179.99
