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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P/G Manual V/B-Std Pattr 744200
TCI
$316.95If you're running a manual-shifted Powerglide in competition, your valve body is the critical link between driver input and transmission response. This forward-pattern manual valve body kit delivers the direct control and repeatability that drag and...TCI744200- SKU:
- TCI744200
- Availability:
- Ships Same Business Day
- Weight:
- 14.97 LBS
- MFG Part #:
- 744200
$316.95 -
P/G Dipstick Short 743850
TCI
$82.95Accurate transmission fluid monitoring is critical for Powerglide performance and longevity. This short dipstick eliminates guesswork with a locking mechanism that keeps it securely seated, preventing false readings during acceleration or cornering...TCI743850- SKU:
- TCI743850
- Availability:
- Ships Same Business Day
- Weight:
- 0.48 LBS
- MFG Part #:
- 743850
$82.95 -
P/G Filler Tube W/Stick 743800
TCI
$64.95Accurate transmission fluid monitoring is essential for maintaining optimal hydraulic pressure and shift quality in your Powerglide transmission. This OEM-length dipstick with locking mechanism ensures repeatable, reliable readings every time you check...TCI743800- SKU:
- TCI743800
- Availability:
- Ships Same Business Day
- Weight:
- 0.68 LBS
- MFG Part #:
- 743800
$64.95 -
P/G 11in Circle Track Torque Converter 741125
TCI
$487.95If you're running circle track competition, your torque converter is the critical link between engine power and track performance. This 11-inch P/G converter delivers the precise 1800-2100 RPM stall range needed for consistent launch characteristics and...TCI741125- SKU:
- TCI741125
- Availability:
- Ships Same Business Day
- Weight:
- 31.85 LBS
- MFG Part #:
- 741125
$487.95 -
Torque Converter GM Powerglide 741025
TCI
$364.95If you're running a circle track Powerglide setup, converter stall speed directly impacts your launch performance and consistency off the line. This 10-inch converter with 1800-2000 RPM stall gives you the thermal capacity and lockup precision needed for...TCI741025- SKU:
- TCI741025
- Availability:
- Ships Same Business Day
- Weight:
- 27.20 LBS
- MFG Part #:
- 741025
$364.95 -
P/G Rev Friction Clutchs 724100
TCI
$38.95If you're running a Powerglide transmission at serious RPMs, your reverse clutch pack is working harder than most people realize—and factory friction material simply won't hold up under repeated launches or sustained load. The P/G Rev Friction Clutch set...TCI724100- SKU:
- TCI724100
- Availability:
- Ships Same Business Day
- Weight:
- 0.86 LBS
- MFG Part #:
- 724100
$38.95 -
P/G Kolene Steel Plates 724002
TCI
$49.95Powerglide transmissions demand clutch plates engineered for consistent engagement and durability under high-load conditions. These P/G Kolene steel plates are nitride-treated to resist wear and heat degradation, ensuring reliable shifts through multiple...TCI724002- SKU:
- TCI724002
- Availability:
- Ships Same Business Day
- Weight:
- 1.16 LBS
- MFG Part #:
- 724002
$49.95 -
Hi Gear Friction Clutch Pack(5) 724000
TCI
$35.95If you're running a Powerglide transmission in a high-performance application, clutch pack quality directly impacts your ability to transfer power consistently and reliably under load. These Hi Gear friction clutches are engineered to withstand the...TCI724000- SKU:
- TCI724000
- Availability:
- Ships Same Business Day
- Weight:
- 0.67 LBS
- MFG Part #:
- 724000
$35.95 -
Pres Reg Spring-Powergli 704300
TCI
$20.95Maintain precise transmission fluid pressure and eliminate erratic shift behavior with this OEM-quality regulator spring. Whether you're tuning a stock Powerglide or running a high-performance build, proper pressure regulation is critical to consistent...TCI704300- SKU:
- TCI704300
- Availability:
- Ships Same Business Day
- Weight:
- 0.08 LBS
- MFG Part #:
- 704300
$20.95 -
Powerglide Over Haul Kit 628800
TCI
$63.95A Powerglide transmission is only as reliable as its sealing integrity—and when you're pushing RPMs at the track or hitting the strip hard, factory seals won't cut it. This complete overhaul kit gives you OEM-equivalent gaskets, sealing rings, and seals...TCI628800- SKU:
- TCI628800
- Availability:
- Ships Same Business Day
- Weight:
- 1.20 LBS
- MFG Part #:
- 628800
$63.95 -
P/G Pan Gasket & Fltr.Ki 628500
TCI
$33.95Keep your Powerglide transmission running clean and sealed with this purpose-built gasket and filter kit. A fresh filter removes contaminants that degrade fluid quality and shift performance, while a quality gasket eliminates leaks that compromise...TCI628500- SKU:
- TCI628500
- Availability:
- Ships Same Business Day
- Weight:
- 0.65 LBS
- MFG Part #:
- 628500
$33.95 -
Race Low Gear Band GM P/G 625101
TCI
$116.95The Race Low Gear Band is engineered for Powerglide transmissions that see serious track duty. When you're launching hard or running repeated acceleration runs, OEM bands wear out fast—this heavy-duty replacement keeps your low-gear engagement crisp and...TCI625101- SKU:
- TCI625101
- Availability:
- Ships Same Business Day
- Weight:
- 1.98 LBS
- MFG Part #:
- 625101
$116.95 -
P/G Bushing Kit 623700
TCI
$38.95Worn transmission bushings lead to excessive play, noise, and premature wear on your Powerglide's internal components. This complete bushing kit eliminates slack in the transmission housing, restoring precise shift feel and protecting your investment in...TCI623700- SKU:
- TCI623700
- Availability:
- Ships Same Business Day
- Weight:
- 0.39 LBS
- MFG Part #:
- 623700
$38.95 -
Ford 289-351 Flywheel 529632
TCI
$377.95If you're running a Ford 289-351 engine with a GM transmission swap, this flywheel bridges the gap between two different bolt patterns without compromise. Built to SFI 29.1 specifications and internally balanced, it delivers the reliability you need for...TCI529632- SKU:
- TCI529632
- Availability:
- Ships Same Business Day
- Weight:
- 12.61 LBS
- MFG Part #:
- 529632
$377.95 -
Alum. P/G Trany Pan Stock Depth 528300
TCI
$169.95A quality transmission pan is foundational to reliable cooling and heat dissipation in any Powerglide setup. This aluminum pan maintains OEM depth while offering superior thermal management compared to stock steel units, keeping fluid temperatures in the...TCI528300- SKU:
- TCI528300
- Availability:
- Ships Same Business Day
- Weight:
- 9.62 LBS
- MFG Part #:
- 528300
$169.95Qty in Cart: 0Quantity:Price:$169.95Subtotal: -
153 Tooth Chevy Flywheel 399573
TCI
$147.95A reliable flywheel is the foundation of any high-performance small block Chevy engine—it directly impacts your starter engagement, engine balance, and overall drivability. This 153-tooth flexplate delivers the precision fitment and durability you need...TCI399573- SKU:
- TCI399573
- Availability:
- Ships Same Business Day
- Weight:
- 5.39 LBS
- MFG Part #:
- 399573
$147.95 -
Ext Bal 400 Gm Flexplate 399373
TCI
$134.95A quality flexplate is fundamental to a reliable driveline—it's the critical link between your engine and transmission that must handle consistent torque cycles without failure. This 400-gram external balance unit is engineered for Small Block Chevy...TCI399373- SKU:
- TCI399373
- Availability:
- Ships Same Business Day
- Weight:
- 7.36 LBS
- MFG Part #:
- 399373
$134.95 -
SFI Flexplate Chevy V8 168 Tooth Int Balance 399273
TCI
$137.95A flexplate is the critical link between your engine and transmission—it must be precision-engineered to handle power transfer without deflection or premature failure. This SFI-certified flexplate is engineered for Small Block Chevy engines and designed...TCI399273- SKU:
- TCI399273
- Availability:
- Ships Same Business Day
- Weight:
- 6.81 LBS
- MFG Part #:
- 399273
$137.95Qty in Cart: 0Quantity:Price:$137.95Subtotal: -
SFI Flexplate GM LT1 153 Tooth Ext. Balance 399173
TCI
$156.95If you're running a high-performance LT1 engine with external balance, you need a flexplate engineered to handle the demands of your rotating assembly. This SFI-certified unit eliminates the guesswork of fitment and balance, giving you the reliability...TCI399173- SKU:
- TCI399173
- Availability:
- Ships Same Business Day
- Weight:
- 5.45 LBS
- MFG Part #:
- 399173
$156.95 -
Torque Converter FastLap GM TH350 Circle Track 242125
TCI
$430.95A proper torque converter is critical for consistent lap times and reliability on the circle track. The Torque Converter FastLap GM TH350 delivers predictable power transfer and lock-up performance, eliminating converter slippage that costs you tenths in...TCI242125- SKU:
- TCI242125
- Availability:
- Ships Same Business Day
- Weight:
- 27.50 LBS
- MFG Part #:
- 242125
$430.95
