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
-
SCS Quick Change Gear Set 32K
SCS GEARS
$204.99The SCS Quick Change Gear Set 32K delivers the versatility professional racers demand when dialing in performance across different track conditions and racing formats. By offering dual gear ratio...SCS32K- SKU:
- SCS32K
- Availability:
- Ships Same Business Day
- Weight:
- 4.88 LBS
- MFG Part #:
- 32K
$204.99 -
SCS Quick Change Gear Set 31
SCS GEARS
$204.99Quick-change gear sets are essential for racers who demand performance flexibility without breaking down the entire differential. The SCS Set 31 eliminates downtime between sessions, allowing you to...SCS31- SKU:
- SCS31
- Availability:
- Ships Same Business Day
- Weight:
- 4.72 LBS
- MFG Part #:
- 31
$204.99 -
SCS Quick Change Gear Set 30K
SCS GEARS
$204.99Quick-change gear sets are essential for racers who demand the ability to dial in their differential ratio between rounds without pulling the entire third member. The SCS 30K delivers...SCS30K- SKU:
- SCS30K
- Availability:
- Ships Same Business Day
- Weight:
- 4.92 LBS
- MFG Part #:
- 30K
$204.99 -
SCS Quick Change Gear Set 30
SCS GEARS
$204.99Competitive racing demands rapid gear changes between heats and track conditions—the SCS Quick Change Gear Set 30 eliminates downtime and guesswork. With dual ratio options (4.11 and 4.86) engineered...SCS30- SKU:
- SCS30
- Availability:
- Ships Same Business Day
- Weight:
- 4.92 LBS
- MFG Part #:
- 30
$204.99 -
SCS Quick Change Gear Set 29
SCS GEARS
$204.99Quick-change gear sets eliminate downtime between races by allowing you to swap ratios in minutes rather than hours—critical when track conditions demand on-the-fly adjustments. The SCS Set 29...SCS29- SKU:
- SCS29
- Availability:
- Ships Same Business Day
- Weight:
- 4.96 LBS
- MFG Part #:
- 29
$204.99 -
SCS Quick Change Gear Set 28
SCS GEARS
$204.99Quick gear changes are essential in competitive racing—every second counts when you're chasing track position or dial-in times. The SCS Quick Change Gear Set 28 lets you swap ratios between rounds...SCS28- SKU:
- SCS28
- Availability:
- Ships Same Business Day
- Weight:
- 4.75 LBS
- MFG Part #:
- 28
$204.99 -
SCS Quick Change Gear Set 26
SCS GEARS
$204.99Quick-change gear sets let you dial in your differential ratios between rounds without pulling the entire carrier—critical when you're chasing tenths and need to adapt to different track conditions...SCS26- SKU:
- SCS26
- Availability:
- Ships Same Business Day
- Weight:
- 4.54 LBS
- MFG Part #:
- 26
$204.99 -
SCS Quick Change Gear Set 25
SCS GEARS
$204.99Quick-change gear sets are essential for competitors who run multiple track configurations or regularly switch between sprint and endurance racing formats. The SCS Set 25 lets you dial in your...SCS25- SKU:
- SCS25
- Availability:
- Ships Same Business Day
- Weight:
- 5.45 LBS
- MFG Part #:
- 25
$204.99 -
SCS Quick Change Gear Set 24
SCS GEARS
$204.99Quick-change gear sets are essential for racers who need to dial in their setup between rounds without removing the entire rear end. The SCS Set 24 gives you two proven ratios in a single, efficient...SCS24- SKU:
- SCS24
- Availability:
- Ships Same Business Day
- Weight:
- 4.88 LBS
- MFG Part #:
- 24
$204.99 -
SCS Quick Change Gear Set 22
SCS GEARS
$204.99Quick-change gear sets are essential for racers who need to dial in their differential ratio between sessions without pulling the entire carrier. The SCS Set 22 gives you two proven ratios in a...SCS22- SKU:
- SCS22
- Availability:
- Ships Same Business Day
- Weight:
- 5.20 LBS
- MFG Part #:
- 22
$204.99 -
SCS Quick Change Gear Set 21
SCS GEARS
$204.99Quick-change gearing lets you dial in the perfect ratio for any track condition without breaking down your differential or spending hours on teardown and rebuild. The SCS Set 21 gives you two premium...SCS21- SKU:
- SCS21
- Availability:
- Ships Same Business Day
- Weight:
- 5.03 LBS
- MFG Part #:
- 21
$204.99 -
SCS Quick Change Gear Set 20
SCS GEARS
$204.99Quick-change gear sets are essential for racers who demand flexibility without downtime—swap ratios between rounds to optimize performance for different track conditions, weather, and competition...SCS20- SKU:
- SCS20
- Availability:
- Ships Same Business Day
- Weight:
- 5.17 LBS
- MFG Part #:
- 20
$204.99 -
SCS Quick Change Gear Set 18
SCS GEARS
$204.99Quick-change gear sets are essential for racers who need to optimize performance across different track conditions and race formats without dismantling the entire differential. The SCS Quick Change...SCS18- SKU:
- SCS18
- Availability:
- Ships Same Business Day
- Weight:
- 5.34 LBS
- MFG Part #:
- 18
$204.99 -
SCS Quick Change Gear Set 17
SCS GEARS
$204.99The SCS Quick Change Gear Set 17 lets you swap gear ratios between races without breaking down your differential, saving hours of shop time and keeping your setup competitive across different track...SCS17- SKU:
- SCS17
- Availability:
- Ships Same Business Day
- Weight:
- 5.47 LBS
- MFG Part #:
- 17
$204.99 -
SCS Quick Change Gear Set 16
SCS GEARS
$204.99Quick-change gear sets let you dial in your final drive ratio between rounds without pulling the housing—critical for track conditions that shift from qualifying to race day. The SCS Set 16 gives you...SCS16- SKU:
- SCS16
- Availability:
- Ships Same Business Day
- Weight:
- 5.03 LBS
- MFG Part #:
- 16
$204.99 -
SCS Quick Change Gear Set 15K
SCS GEARS
$204.99Quick-change gear sets eliminate downtime between races by allowing you to swap ratios in minutes without breaking down your entire differential. The SCS 15K delivers precision-engineered performance...SCS15K- SKU:
- SCS15K
- Availability:
- Ships Same Business Day
- Weight:
- 6.19 LBS
- MFG Part #:
- 15K
$204.99 -
SCS Quick Change Gear Set 15
SCS GEARS
$204.99For bracket racers and oval track competitors running multiple race configurations, the SCS Quick Change Gear Set 15 eliminates downtime between events by letting you swap gear ratios in minutes...SCS15- SKU:
- SCS15
- Availability:
- Ships Same Business Day
- Weight:
- 5.51 LBS
- MFG Part #:
- 15
$204.99 -
SCS Quick Change Gear Set 14K
SCS GEARS
$204.99If you're serious about competitive racing, gear ratio selection can make or break your performance on the track. The SCS Quick Change Gear Set 14K lets you swap ratios between races without pulling...SCS14K- SKU:
- SCS14K
- Availability:
- Ships Same Business Day
- Weight:
- 5.01 LBS
- MFG Part #:
- 14K
$204.99 -
SCS Quick Change Gear Set 14
SCS GEARS
$204.99Quick-change gear sets are essential for racers who need to adjust final drive ratios between sessions without complete rear-end teardown. The SCS Set 14 delivers two proven ratios in a single...SCS14- SKU:
- SCS14
- Availability:
- Ships Same Business Day
- Weight:
- 5.05 LBS
- MFG Part #:
- 14
$204.99 -
SCS Quick Change Gear Set 13
SCS GEARS
$204.99Quick-change gear sets are essential for racers who need to adapt their final drive ratios between track sessions or racing formats without full rear-end disassembly. The SCS Set 13 gives you two...SCS13- SKU:
- SCS13
- Availability:
- Ships Same Business Day
- Weight:
- 5.15 LBS
- MFG Part #:
- 13
$204.99
