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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- Price
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Strange Oval Axle 31 Spline 33.0in 1.100in OD AGY11003300
STRANGE OVAL
$320.99If you're building or upgrading a high-performance rear axle assembly, shaft quality directly impacts reliability under load and power transfer efficiency. The Strange Oval Axle delivers the durability and precision fit you need for consistent...SOTAGY11003300- SKU:
- SOTAGY11003300
- Availability:
- Ships Same Business Day
- Weight:
- 6.30 LBS
$320.99Qty in Cart: 0Quantity:Price:$320.99Subtotal: -
Strange Oval Axle 31 Spline 31.0in 1.100in OD AGY11003100
STRANGE OVAL
$320.99A quality axle shaft is the backbone of any reliable drivetrain—it transmits power directly from your differential to the wheels under extreme load and stress. The Strange Oval Axle delivers the strength and precision you need for consistent performance,...SOTAGY11003100- SKU:
- SOTAGY11003100
- Availability:
- Ships Same Business Day
- Weight:
- 9.00 LBS
$320.99 -
Strange Oval Axle 31 Spline 29.50in 1.100in OD AGY11002950
STRANGE OVAL
$320.99If you're building a high-performance rear axle assembly or replacing a worn shaft, the Strange Oval Axle delivers the strength and precision required for consistent power delivery under extreme load. This 31-spline carrier shaft is engineered to handle...SOTAGY11002950- SKU:
- SOTAGY11002950
- Availability:
- Ships Same Business Day
- Weight:
- 6.90 LBS
$320.99 -
Strange Oval Axle 31 Spline 29.50in 1.080in OD AGY10802950
STRANGE OVAL
$320.99A quality axle shaft is the backbone of your drivetrain, and the Strange Oval Axle delivers the strength and precision required for high-horsepower applications. Whether you're building a dedicated circle-track racer or upgrading a street performance...SOTAGY10802950- SKU:
- SOTAGY10802950
- Availability:
- Ships Same Business Day
- Weight:
- 8.09 LBS
$320.99Qty in Cart: 0Quantity:Price:$320.99Subtotal: -
Strange Oval Axle 31 Spline 28.50in 1.080in OD AGY10802850
STRANGE OVAL
$320.99A quality axle shaft is the backbone of any reliable rear-end assembly, and the Strange Oval Axle delivers the strength and precision you need for consistent power delivery under load. Whether you're running a dedicated track setup or a high-horsepower...SOTAGY10802850- SKU:
- SOTAGY10802850
- Availability:
- Ships Same Business Day
- Weight:
- 6.53 LBS
$320.99 -
SBF Flexplate SFI 164 Tooth Internal Balance FP-302N-SFI
SCAT ENTERPRISES
$79.99A quality flexplate is critical to reliable engine startup and smooth power delivery from your Small Block Ford to the transmission. The SBF Flexplate SFI 164 Tooth Internal Balance is engineered with precision tolerances and SFI certification, ensuring...SCAFP-302N-SFI- SKU:
- SCAFP-302N-SFI
- Availability:
- Ships Same Business Day
- Weight:
- 8.00 LBS
$79.99 -
Ford 8.8 Carrier Shims 38-0007-1
RICHMOND
$10.99Precise differential carrier shimming is critical for maintaining proper gear mesh and backlash in your Ford 8.8 or GM 10-bolt rear end. Incorrect shim spacing leads to premature wear, noise, and loss of power transfer—especially under aggressive driving...RIC38-0007-1- SKU:
- RIC38-0007-1
- Availability:
- Ships Same Business Day
- Weight:
- 1.00 LBS
$10.99 -
GM 8.5 Carrier Shims 38-0006-1
RICHMOND
$13.99Proper differential shim selection is critical for maintaining precise bearing preload and backlash settings—neglecting this step leads to premature wear, noise, and potential catastrophic failure. Whether you're rebuilding a worn differential or...RIC38-0006-1- SKU:
- RIC38-0006-1
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
$13.99 -
Release Bearing 488
RAM CLUTCH
$32.00A worn or failing throwout bearing compromises your clutch engagement and can leave you stranded mid-race or mid-drive. The Release Bearing 488 is a direct replacement that restores smooth, predictable clutch operation with zero play, ensuring consistent...RAM488- SKU:
- RAM488
- Availability:
- Ships Same Business Day
- Weight:
- 0.68 LBS
$32.00 -
Quarter Master Flywheel Assembly LS1 Chevy 91t 509136
QUARTER MASTER
$641.69If you're running a high-revving LS1 and need a flywheel that won't hold you back, the Quarter Master 91-tooth assembly is purpose-built for drag racing and forced-induction applications where weight savings and reliable engagement matter. This...QTR509136- SKU:
- QTR509136
- Availability:
- Ships Same Business Day
- Weight:
- 2.99 LBS
$641.69 -
Quarter Master 7.25 V-Drive Clutch 26sp 2 Disc SBC 1pc Rear Main 298153ZZ
QUARTER MASTER
$784.34The Quarter Master 7.25 V-Drive Clutch delivers the holding power and engagement precision your small block Chevy demands in high-RPM racing conditions. This dual-disc setup with ceramic friction material provides consistent bite and extended durability,...QTR298153ZZ- SKU:
- QTR298153ZZ
- Availability:
- Ships Same Business Day
- Weight:
- 12.95 LBS
$784.34 -
Quarter Master 2 Disc Clutch Pack Coarse Heat Treated 226080S
QUARTER MASTER
$160.86When you're building a clutch system that demands reliability under extreme load cycles, Quarter Master's 2 Disc Clutch Pack delivers the holding power and engagement consistency you need. The coarse heat-treated friction material provides superior bite...QTR226080S- SKU:
- QTR226080S
- Availability:
- Ships Same Business Day
- Weight:
- 2.60 LBS
$160.86Qty in Cart: 0Quantity:Price:$160.86Subtotal: -
Quarter Master Crank Hub Assembly LS1 Chevy 22t 180136
QUARTER MASTER
$471.19The Quarter Master Crank Hub Assembly is engineered for LS1 applications where reliability and precision engagement are non-negotiable. This 22-tooth coupler delivers consistent power transfer to your transmission while eliminating slop in the...QTR180136- SKU:
- QTR180136
- Availability:
- Ships Same Business Day
- Weight:
- 2.02 LBS
$471.19 -
Flexplate Spacer Shims SBF 302/351 5pk RM-943
QUICK TIME
$52.99Flexplate runout and crankshaft harmonics directly impact engine reliability and driveline longevity—this shim kit lets you dial in precise spacing to eliminate excessive play between your flexplate and crankshaft. Whether you're troubleshooting...QTMRM-943- SKU:
- QTMRM-943
- Availability:
- Ships Same Business Day
- Weight:
- 0.90 LBS
$52.99 -
Flexplate Spacer Shims GM 74-85 5pk RM-935
QUICK TIME
$78.35Flexplate runout and misalignment are common culprits behind vibration, noise, and premature wear on your transmission and engine block. This 5-piece shim kit lets you dial in precise clearance between your flexplate and crankshaft, eliminating the...QTMRM-935- SKU:
- QTMRM-935
- Availability:
- Ships Same Business Day
- Weight:
- 0.55 LBS
$78.35 -
SBC 153 Tooth Flexplate Lightweight 1-Piece RM RM-930
QUICK TIME
$243.95If you're building a Small Block Chevy engine for the track or street, choosing the right flexplate directly impacts your driveline reliability and overall system balance. A lightweight, internally balanced flexplate reduces rotational mass and improves...QTMRM-930- SKU:
- QTMRM-930
- Availability:
- Ships Same Business Day
- Weight:
- 3.15 LBS
$243.95 -
QA1 Driveshaft Carbon 37.5in Traction Twist w/o Yoke JJ-11273
QA1
$1,339.99Dirt late model racing demands a driveshaft that can handle extreme traction loads without sacrificing weight or responsiveness. The QA1 Carbon TractionTwist delivers the rotational rigidity you need to transfer power consistently, while its carbon fiber...QA1JJ-11273- SKU:
- QA1JJ-11273
- Availability:
- Ships Same Business Day
- Weight:
- 6.00 LBS
$1,339.99Qty in Cart: 0Quantity:Price:$1,339.99Subtotal: -
PST Steel Driveshaft 55in Long 3in Dia. 310550
PRECISION SHAFT TECHNOLOGIES
$418.99A quality driveshaft is the backbone of any high-performance drivetrain, transmitting power efficiently while handling the stress of acceleration and cornering. The PST Steel Driveshaft is engineered for reliability and precision, delivering smooth power...PST310550- SKU:
- PST310550
- Availability:
- Ships Same Business Day
- Weight:
- 24.60 LBS
$418.99Qty in Cart: 0Quantity:Price:$418.99Subtotal: -
PST Steel Driveshaft 54in Long 3in Dia. 310540
PRECISION SHAFT TECHNOLOGIES
$418.99A quality driveshaft is the backbone of reliable power transfer from your engine to the wheels. The PST Steel Driveshaft delivers the strength and balance needed for consistent performance, whether you're building a street machine or preparing for...PST310540- SKU:
- PST310540
- Availability:
- Ships Same Business Day
- Weight:
- 31.00 LBS
$418.99 -
PST Steel Driveshaft 52.5 in Long 3in Dia. 310525
PRECISION SHAFT TECHNOLOGIES
$418.99A quality driveshaft is the backbone of any high-performance drivetrain, transmitting engine power reliably under load without flex or vibration. The PST Steel Driveshaft 310525 delivers the durability and precision fit you need for street, strip, or...PST310525- SKU:
- PST310525
- Availability:
- Ships Same Business Day
- Weight:
- 25.00 LBS
$418.99Qty in Cart: 0Quantity:Price:$418.99Subtotal:
