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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BK FORD 8.8in 81-10 R8.8RMKT
MOTIVE GEAR
$139.99Differential Installation KitMasterBearings / Crush Sleeve / Gaskets / Hardware / Seals / Shims / Thread LockerFord 8.8 inKitMOTR8.8RMKT- SKU:
- MOTR8.8RMKT
- Availability:
- Ships Same Business Day
- Weight:
- 5.80 LBS
$139.99 -
Master Install Kit 8.5in w/Eaton or Auburn Unit R10REMKT
MOTIVE GEAR
$169.99Differential Install KitMasterBearings / Crush Sleeve / Gaskets / Hardware / Seals / Shims / Thread Locker8.5 inGM 10 BoltMOTR10REMKT- SKU:
- MOTR10REMKT
- Availability:
- Ships Same Business Day
- Weight:
- 5.65 LBS
$169.99 -
Shifter Boot Koolmat SFI Approved #07063
KOOL MAT
$133.99Shifter Boot CoverSFI 48.18.50 x 7.50 in BaseNomexBlackKOO07063- SKU:
- KOO07063
- Availability:
- Ships Same Business Day
- Weight:
- 0.29 LBS
$133.99 -
Rear Diff Fill Tank 12an w/Vented Cap KR9090-12V
KEVKO OIL PANS & COMPONENTS
$109.99Remote Fill Tank12 AN OutletVented CapEachKEVKR9090-12V- SKU:
- KEVKR9090-12V
- Availability:
- Ships Same Business Day
- Weight:
- 1.16 LBS
$109.99 -
Rear Diff Fill Tank 10an w/Vented Cap KR9090-10V
KEVKO OIL PANS & COMPONENTS
$109.99Rear End Fill TankVented Filler Tank10 AN OutletAluminumNaturalEachKEVKR9090-10V- SKU:
- KEVKR9090-10V
- Availability:
- Ships Same Business Day
- Weight:
- 1.13 LBS
$109.99Qty in Cart: 0Quantity:Price:$109.99Subtotal: -
Joes Drive Flange 5 x 5 Steel 25045
JOES RACING PRODUCTS
$139.95Drive Flange5 x 5 in Wheel Bolt Pattern24 SplineSteelBlack OxideJOE25045- SKU:
- JOE25045
- Availability:
- Ships Same Business Day
- Weight:
- 2.46 LBS
$139.95 -
Sleeve Bushing JER-0064
JERICO
$16.99Transmission BushingOutputAluminumNaturalJerico TransmissionJER0064- SKU:
- JER0064
- Availability:
- Ships Same Business Day
- Weight:
- 0.37 LBS
$16.99 -
Tube 3/8in Breather JER-0057
JERICO
$1.99Breather Tube3/8 in ODPlasticBlackJerico TransmissionJER0057- SKU:
- JER0057
- Availability:
- Ships Same Business Day
- Weight:
- 0.03 LBS
$1.99 -
Fork Low / High JER-0046
JERICO
$84.99Transmission Shift ForkLow / HighAluminumNaturalJerico TransmissionJER0046- SKU:
- JER0046
- Availability:
- Ships Same Business Day
- Weight:
- 0.19 LBS
$84.99 -
Fork Reverse JER-0045
JERICO
$74.99Transmission Shift ForkReverseAluminumNaturalJerico TransmissionJER0045- SKU:
- JER0045
- Availability:
- Ships Same Business Day
- Weight:
- 0.08 LBS
$74.99 -
Shift Rail Reverse JER-0043
JERICO
$48.99Shifter RodReverseSteelNaturalJerico TransmissionJER0043- SKU:
- JER0043
- Availability:
- Ships Same Business Day
- Weight:
- 0.73 LBS
$48.99 -
Spacer Clutch Piston JER-0039
JERICO
$8.99Flat Washer0.995 in ID1.625 in OD0.182 in ThickSteelEachJER0039- SKU:
- JER0039
- Availability:
- Ships Same Business Day
- Weight:
- 0.06 LBS
$8.99 -
Fitting Bleed Screw JER-0036
JERICO
$13.99Bleeder ScrewAdapterStraight3/8 in NPT Male Thread to 1/4 in NPT Male BleederBrass / SteelEachJER0036- SKU:
- JER0036
- Availability:
- Ships Same Business Day
- Weight:
- 0.01 LBS
$13.99 -
Gear Idler Gear JER-0024
JERICO
$140.99Reverse Idler GearSteelZinc PlatedJerico Dirt TransmissionEachJER0024- SKU:
- JER0024
- Availability:
- Ships Same Business Day
- Weight:
- 1.36 LBS
$140.99 -
Shaft Cluster JER-0014
JERICO
$75.99Counter ShaftSteelNaturalJerico TransmissionEachJER0014- SKU:
- JER0014
- Availability:
- Ships Same Business Day
- Weight:
- 1.55 LBS
$75.99 -
Spacer .030in 13
JERICO
$3.89Thrust Bearing Shim1.533 in OD1 in ID0.030 in ThickSteelJerico Dirt TransmissionEachJER0013- SKU:
- JER0013
- Availability:
- Ships Same Business Day
- Weight:
- 0.04 LBS
$3.89 -
Washer Thrust JER-0009
JERICO
$7.99Thrust Washer0.092 in ThickSteelZinc PlatedJerico Dirt TransmissionJER0009- SKU:
- JER0009
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
$7.99 -
Clutch Pack Hub JER-0005
JERICO
$150.99Clutch HubForwardSteelNaturalJerico Dirt TransmissionJER0005- SKU:
- JER0005
- Availability:
- Ships Same Business Day
- Weight:
- 3.10 LBS
$150.99 -
Case Dirt Transmission JER-0001
JERICO
$440.99Transmission CaseAluminumBlack PaintJerico Dirt TransmissionEachJER0001- SKU:
- JER0001
- Availability:
- Ships Same Business Day
- Weight:
- 8.30 LBS
$440.99 -
Shifter Stick- Chrome OEM Round Bar Design 5387438
HURST
$141.95Shifter StickSingle Bend11.21 in3/8-16 in ThreadSteelHurst Manual ShiftersEachHUR538-7438- SKU:
- HUR538-7438
- Availability:
- Ships Same Business Day
- Weight:
- 1.13 LBS
$141.95