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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Allstar Performance Flexplate 168T 400 Std External Balance ALL26815
ALLSTAR PERFORMANCE
$48.99Flexplate 168T 400 Std External BalanceFlexplate168 ToothSteelExternal Balance2 Piece SealSmall Block ChevyEachALL26815- SKU:
- ALL26815
- Availability:
- Ships Same Business Day
- Weight:
- 6.36 LBS
- MFG Part #:
- ALL26815
$48.99 -
Allstar Performance Flexplate 168T 400 SFI External Balance ALL26810
ALLSTAR PERFORMANCE
$74.99Flexplate 168T 400 SFI External BalanceFlexplate168 ToothSFI 29.1SteelExternal Balance2 Piece SealSmall Block ChevyEachALL26810- SKU:
- ALL26810
- Availability:
- Ships Same Business Day
- Weight:
- 6.88 LBS
- MFG Part #:
- ALL26810
$74.99 -
Allstar Performance Flexplate 168T External Balance 86-up ALL26806
ALLSTAR PERFORMANCE
$48.99Flexplate 168T External Balance 86-upFlexplate168 ToothSteelExternal Balance1 Piece SealSmall Block ChevyEachALL26806- SKU:
- ALL26806
- Availability:
- Ships Same Business Day
- Weight:
- 6.46 LBS
- MFG Part #:
- ALL26806
$48.99 -
Allstar Performance Flexplate 168T Std Internal Balance ALL26805
ALLSTAR PERFORMANCE
$42.99Flexplate 168T Std Internal BalanceFlexplate168 ToothSteelInternal Balance2 Piece SealChevy V8EachALL26805- SKU:
- ALL26805
- Availability:
- Ships Same Business Day
- Weight:
- 6.16 LBS
- MFG Part #:
- ALL26805
$42.99 -
Allstar Performance Flexplate 168T SFI External Balance 86-up ALL26801
ALLSTAR PERFORMANCE
$69.99Flexplate 168T SFI External Balance 86-upFlexplate168 ToothSFI 29.1SteelExternal Balance1 Piece SealSmall Block ChevyEachALL26801- SKU:
- ALL26801
- Availability:
- Ships Same Business Day
- Weight:
- 6.57 LBS
- MFG Part #:
- ALL26801
$69.99 -
Allstar Performance Long Pilot Bushing w/ Roller Bearing ALL26114
ALLSTAR PERFORMANCE
$29.99Long Pilot Bushing w/ Roller BearingPilot BearingRollerExtra LongSteelGMEachALL26114- SKU:
- ALL26114
- Availability:
- Ships Same Business Day
- Weight:
- 0.22 LBS
- MFG Part #:
- ALL26114
$29.99 -
Allstar Performance Tube Clamp 2in I.D. x 2in Wide ALL14486
ALLSTAR PERFORMANCE
$13.99Tube Clamp 2in I.D. x 2in WideTube Clamp2-Bolt2 in ID2 in WideSteelNaturalEachALL14486- SKU:
- ALL14486
- Availability:
- Ships Same Business Day
- Weight:
- 1.03 LBS
- MFG Part #:
- ALL14486
$13.99 -
Allstar Performance Tube Clamp 1-3/4in I.D. x 2in Wide ALL14485
ALLSTAR PERFORMANCE
$13.99Tube Clamp 1-3/4in I.D. x 2in WideTube Clamp2-Bolt1-3/4 in ID2 in WideSteelNaturalEachALL14485- SKU:
- ALL14485
- Availability:
- Ships Same Business Day
- Weight:
- 1.27 LBS
- MFG Part #:
- ALL14485
$13.99 -
Allstar Performance Tube Clamp 1-1/4in I.D. x 2in Wide ALL14481
ALLSTAR PERFORMANCE
$13.99Tube Clamp 1-1/4in I.D. x 2in WideTube Clamp2-Bolt1-1/4 in ID2 in WideSteelNaturalEachALL14481- SKU:
- ALL14481
- Availability:
- Ships Same Business Day
- Weight:
- 0.78 LBS
- MFG Part #:
- ALL14481
$13.99 -
Allstar Performance Tube Clamp 1in I.D. x 2in Wide ALL14480
ALLSTAR PERFORMANCE
$13.99Tube Clamp 1in I.D. x 2in WideTube Clamp2-Bolt1 in ID2 in WideSteelNaturalEachALL14480- SKU:
- ALL14480
- Availability:
- Ships Same Business Day
- Weight:
- 0.80 LBS
- MFG Part #:
- ALL14480
$13.99 -
Allstar Performance Neck Mount 1.525in Black ALL14475
ALLSTAR PERFORMANCE
$44.99This two-piece aluminum bracket is engineered for 1.525-inch diameter necks, featuring a flat base and 2.50-inch bolt spacing. Its black anodized finish enhances durability and provides a sleek appearance. Lightweight and durable aluminum...ALL14475- SKU:
- ALL14475
- Availability:
- Ships Same Business Day
- Weight:
- 0.48 LBS
- MFG Part #:
- ALL14475
$44.99 -
Allstar Performance 1.525" Polished Aluminum Neck Mount 2-Piece 2.50" Bolt Spacing ALL14474
ALLSTAR PERFORMANCE
$46.99The Allstar Performance 1.525" Polished Aluminum Neck Mount is a two-piece accessory bracket designed for 1.525" diameter necks. It features a flat bottom with two 1/4-20" threaded mounting holes spaced 2.50" apart, facilitating secure attachment to...ALL14474- SKU:
- ALL14474
- Availability:
- Ships Same Business Day
- Weight:
- 0.47 LBS
- MFG Part #:
- ALL14474
$46.99 -
Clutch Pack 7.25in 2 Disc 10 Spline R725103K2
ACE RACING CLUTCHES
$200.99Clutch Pack 7.25in 2 Disc 10 SplineClutch Disc7-1/4 in Diameter1-1/8 in x 10 SplineCeramic / MetallicUniversalPairACER725103K2- SKU:
- ACER725103K2
- Availability:
- Ships Same Business Day
- Weight:
- 2.55 LBS
- MFG Part #:
- R725103K2
$200.99 -
10.5in Clutch Cover Med WT R105311HDK
ACE RACING CLUTCHES
$167.6310.5in Clutch Cover Med WTClutch Pressure PlateDiaphragm10.50 in Diameter2800 lb Static Pressure11-5/8 in Bolt CircleGMEachACER105311HDK- SKU:
- ACER105311HDK
- Availability:
- Ships Same Business Day
- Weight:
- 17.17 LBS
- MFG Part #:
- R105311HDK
$167.63 -
Flywheel SBC External Balance 87-up R105205K
ACE RACING CLUTCHES
$156.82Flywheel SBC External Balance 87-upFlywheel153 Tooth15.8 lbIronNaturalExternal BalanceSmall Block ChevyEachACER105205K- SKU:
- ACER105205K
- Availability:
- Ships Same Business Day
- Weight:
- 17.53 LBS
- MFG Part #:
- R105205K
$156.82Qty in Cart: 0Quantity:Price:$156.82Subtotal: -
10.5in Clutch Disc Organic 1-1/8x10 R105119K
ACE RACING CLUTCHES
$111.9910.5in Clutch Disc Organic 1-1/8x10Clutch Disc10-1/2 in Diameter1-1/8 in x 10 SplineCeramic / MetallicUniversalEachACER105119K- SKU:
- ACER105119K
- Availability:
- Ships Same Business Day
- Weight:
- 3.00 LBS
- MFG Part #:
- R105119K
$111.99 -
10.5 Clutch Disc Metallic 1-1/8x10 R105116K
ACE RACING CLUTCHES
$158.9910.5 Clutch Disc Metallic 1-1/8x10Clutch Disc10-1/2 in Diameter1-1/8 in x 10 SplineCeramic / MetallicUniversalEachACER105116K- SKU:
- ACER105116K
- Availability:
- Ships Same Business Day
- Weight:
- 3.58 LBS
- MFG Part #:
- R105116K
$158.99 -
Winters Quick Change Gear Cover Rebuild Kit
J J MOTORSPORTS
$185.26Kit Includes: (2) Bearings OD: 2.440" ID: .982" (2) Bearing Cover Caps (2) Bearing Cap O-Rings (6) Cover Cap Bolts Gear Cover Gasket (10) Gear Case Nuts234-9088- SKU:
- 234-9088
- Availability:
- Ships Same Business Day
- Weight:
- 5.00 LBS
$185.26Qty in Cart: 0Quantity:Price:$185.26Subtotal: -
Bert Transmission Replacement Parts Kit
BERT TRANSMISSIONS
$87.44Kit Includes: Bellhousing Plate Grease Fitting Spring Washer Idler Gear Bushing Idler Gear Shaft234-9042- SKU:
- 234-9042
- Availability:
- Ships Same Business Day
- Weight:
- 2.00 LBS
$87.44Qty in Cart: 0Quantity:Price:$87.44Subtotal: -
Bert LMZ Transmission Kit for 1 Piece Rear Main Seal
J J MOTORSPORTS
$5.00Bert LMZ Transmission Kit for 1 Piece Rear Main Seal234-9031- SKU:
- 234-9031
- Availability:
- Ships Same Business Day
- Weight:
- 100.00 LBS
$5.00Qty in Cart: 0Quantity:Price:$5.00Subtotal: