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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Winters Tapered Roller Bearing Cone Steel Quick Change WIN7308
WINTERS
$59.99If you're running a Winters Quick Change rear end, this tapered roller bearing cone is critical to maintaining precise load distribution and reliability under race-level demands. A worn or damaged bearing cone compromises both gear engagement and...WIN7308- SKU:
- WIN7308
- Availability:
- Ships Same Business Day
- Weight:
- 0.78 LBS
- MFG Part #:
- 7308
$59.99 -
Winters Double Bearing Cup Steel Standard Pinion Double WIN7307
WINTERS
$43.99If you're running a Winters Quick Change rear end in competition, the integrity of your pinion bearing support directly impacts gear longevity and differential response under load. The WIN7307 double bearing cup distributes pinion loads across a wider...WIN7307- SKU:
- WIN7307
- Availability:
- Ships Same Business Day
- Weight:
- 1.11 LBS
- MFG Part #:
- 7307
$43.99 -
Winters Lock-Up Plug 31 Spline 1-3/8 in Long WIN6789
WINTERS
$31.99If you're running a quick-change differential in a racing application, you need a lock-up plug that won't compromise your drivetrain integrity under load. The Winters 31-spline plug delivers precise fitment and reliable engagement, eliminating slippage...WIN6789- SKU:
- WIN6789
- Availability:
- Ships Same Business Day
- Weight:
- 0.47 LBS
- MFG Part #:
- 6789
$31.99 -
Winters tailshaft housing bearing steel Winters Falcon transmission WIN67574
WINTERS
$22.99The Winters Falcon transmission demands precision components to maintain shift quality and transmission longevity under racing loads. This tailshaft housing bearing is a critical wear item that directly impacts drivetrain reliability—replacing it during...WIN67574- SKU:
- WIN67574
- Availability:
- Ships Same Business Day
- Weight:
- 0.19 LBS
- MFG Part #:
- 67574
$22.99 -
Winters Falcon Transmission Thrust Washer 0.100 in Thick WIN67560
WINTERS
$3.99Thrust washers are critical wear items in any high-performance transmission—they maintain precise clearances between rotating components and directly impact shift quality and transmission longevity. The Winters Falcon Transmission Thrust Washer...WIN67560- SKU:
- WIN67560
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- MFG Part #:
- 67560
$3.99 -
Winters Gear Cover Sprint Center 10-Bolt Ball Bearings Aluminum Natural WIN6746
WINTERS
$183.99If you're running a quick-change rear end in a competitive racing environment, gear ratio changes need to happen fast—without compromising reliability. The Winters Gear Cover Sprint Center delivers smooth bearing engagement and efficient heat management,...WIN6746- SKU:
- WIN6746
- Availability:
- Ships Same Business Day
- Weight:
- 2.85 LBS
- MFG Part #:
- 6746
$183.99 -
Winters aluminum Wide 5 axle housing tube 30-3/16 in length 3 in OD black anodized WIN6672L-36
WINTERS
$212.99If you're running a 3/4 ton Wide 5 rear axle setup, you need an axle housing tube that can handle sustained track loads without adding unnecessary weight. Winters Performance's aluminum housing delivers the strength-to-weight ratio that separates...WIN6672L-36- SKU:
- WIN6672L-36
- Availability:
- Ships Same Business Day
- Weight:
- 7.20 LBS
- MFG Part #:
- 6672L-36
$212.99 -
Winters 28-3/16" Aluminum Axle Tube 3" OD Straight 3/4 Ton Wide 5 Black Anodized 6672-34
WINTERS
$253.99If you're building or upgrading a 3/4 ton Wide 5 rear axle, this Winters aluminum axle tube delivers the straight geometry and lightweight construction your suspension demands. The black anodized finish resists corrosion in harsh track and off-road...WIN6672-34- SKU:
- WIN6672-34
- Availability:
- Ships Same Business Day
- Weight:
- 6.63 LBS
- MFG Part #:
- 6672-34
$253.99 -
Winters HD Sprint Gear Cover Heavy Duty 10-Bolt Ball Bearings Aluminum Natural 6630
WINTERS
$262.99If you're running a Winters Quick Change rear end in sprint car competition, you need a gear cover that matches the demands of high-RPM racing. The Winters HD Sprint Gear Cover 6630 delivers the strength and precision required to handle aggressive...WIN6630- SKU:
- WIN6630
- Availability:
- Ships Same Business Day
- Weight:
- 3.80 LBS
- MFG Part #:
- 6630
$262.99 -
Winters 8-Bolt Wide 5 Spindle Snout Heat Treated Steel WIN6620HT
WINTERS
$136.99A quality rear axle snout is critical to maintaining consistent wheel alignment and bearing integrity under racing conditions—this direct-bolt replacement eliminates guesswork and ensures your drivetrain performs with precision. The Winters 8-bolt...WIN6620HT- SKU:
- WIN6620HT
- Availability:
- Ships Same Business Day
- Weight:
- 4.58 LBS
- MFG Part #:
- 6620HT
$136.99 -
Winters 8-Bolt Wide 5 Cambered Spindle 1.5° Steel Snout WIN6620C-15HT
WINTERS
$174.99If you're running a Wide 5 rear end and need precise geometry control, a quality cambered spindle is essential for dialing in your suspension setup. The Winters 8-Bolt Wide 5 Cambered Spindle delivers the 1.5-degree camber offset required for optimal...WIN6620C-15HT- SKU:
- WIN6620C-15HT
- Availability:
- Ships Same Business Day
- Weight:
- 4.45 LBS
- MFG Part #:
- 6620C-15HT
$174.99 -
Winters 8 Bolt Cambered Spindle Wide 5 Snout 1 Degree WIN6620C-10HT
WINTERS
$178.99If you're running a dedicated racing platform with a Wide 5 hub, rear axle geometry is non-negotiable for consistent handling and tire wear. The Winters 8 Bolt Cambered Spindle delivers a factory-engineered 1.0-degree camber built into heat-treated...WIN6620C-10HT- SKU:
- WIN6620C-10HT
- Availability:
- Ships Same Business Day
- Weight:
- 4.54 LBS
- MFG Part #:
- 6620C-10HT
$178.99 -
Winters 8-Bolt Cambered Spindle Wide 5 0.5° Camber Steel WIN6620C-05
WINTERS
$195.99If you're running a rear axle setup that demands precision alignment and bulletproof durability, this Winters cambered spindle delivers the geometry and strength required for consistent track performance. The 0.5-degree camber angle optimizes tire...WIN6620C-05- SKU:
- WIN6620C-05
- Availability:
- Ships Same Business Day
- Weight:
- 4.61 LBS
- MFG Part #:
- 6620C-05
$195.99 -
Winters Drive Yoke Spacer 0.235" Thick Steel Quick Change WIN6532
WINTERS
$21.99Proper driveline spacing is critical to maintaining gear engagement and minimizing wear under racing loads. The Winters Drive Yoke Spacer delivers the precise 0.235" offset your quick change rear end requires for consistent performance and reliability...WIN6532- SKU:
- WIN6532
- Availability:
- Ships Same Business Day
- Weight:
- 0.08 LBS
- MFG Part #:
- 6532
$21.99 -
Winters CT525 Crankshaft Adapter Steel Cadmium 64976
WINTERS
$73.99If you're running a Winters crankshaft coupler on an LS-Series engine, this adapter is the critical link between your rotating assembly and the rest of your drivetrain. A precision-engineered connection here directly impacts reliability under boost and...WIN64976- SKU:
- WIN64976
- Availability:
- Ships Same Business Day
- Weight:
- 1.20 LBS
- MFG Part #:
- 64976
$73.99 -
Winters Posi-Lock Retainer Pinion Shaft Aluminum Quick Change WIN6484
WINTERS
$36.99If you're running a Winters Quick Change rear end, pinion shaft retention is non-negotiable—a loose retainer means lost power transfer and potential drivetrain failure under load. The Winters Posi-Lock Retainer Pinion Shaft is engineered to lock your...WIN6484- SKU:
- WIN6484
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- MFG Part #:
- 6484
$36.99Qty in Cart: 0Quantity:Price:$36.99Subtotal: -
Winters SBC External Balanced Flywheel 18-Spline Steel WIN63844-18
WINTERS
$186.99If you're running a small block Chevy with external balancing requirements, you need a flywheel that matches your engine's specifications precisely—anything less compromises both performance and reliability. The Winters SBC External Balanced Flywheel...WIN63844-18- SKU:
- WIN63844-18
- Availability:
- Ships Same Business Day
- Weight:
- 3.28 LBS
- MFG Part #:
- 63844-18
$186.99 -
Winters Falcon Transmission 9" Slip Yoke 27 Spline 1-1/16" Bearing 1310 U-Joint WIN62946-9
WINTERS
$133.99A quality slip yoke is critical to maintaining driveline integrity in high-performance applications. The Winters Falcon Transmission 9" Slip Yoke delivers the precision fitment and durability needed for consistent power transfer under demanding racing...WIN62946-9- SKU:
- WIN62946-9
- Availability:
- Ships Same Business Day
- Weight:
- 2.55 LBS
- MFG Part #:
- 62946-9
$133.99 -
Winters 8" Slip Yoke 27 Spline 1-1/16" Bearing Steel 1310 U-Joint WIN62946-8
WINTERS
$108.99If you're running a Winters Falcon transmission in a high-performance application, a quality slip yoke is essential for smooth power delivery and driveline longevity. This Winters 8" slip yoke is engineered with heat-treated steel construction to handle...WIN62946-8- SKU:
- WIN62946-8
- Availability:
- Ships Same Business Day
- Weight:
- 1.37 LBS
- MFG Part #:
- 62946-8
$108.99 -
Winters 1310 Series 27 Spline 6" Slip Yoke Steel 1-1/16" Bearing WIN62946-6
WINTERS
$93.99If you're running a Winters Falcon transmission in a high-torque application, a quality slip yoke is non-negotiable for driveline durability and consistent performance. The Winters 1310 Series slip yoke delivers the precision spline engagement and steel...WIN62946-6- SKU:
- WIN62946-6
- Availability:
- Ships Same Business Day
- Weight:
- 2.01 LBS
- MFG Part #:
- 62946-6
$93.99
