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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SCS Quick Change Gear Set 29
SCS GEARS
$187.99Quick Change Gear SetProfessionalSet 2910 Spline4.11 Ratio 6.58 / 2.574.86 Ratio 7.77 / 3.04SteelEachSCS29- SKU:
- SCS29
- Availability:
- Ships Same Business Day
- Weight:
- 4.96 LBS
- MFG Part #:
- 29
$187.99 -
SCS Quick Change Gear Set 28
SCS GEARS
$187.99Quick Change Gear SetProfessionalSet 2810 Spline4.11 Ratio 6.49 / 2.604.86 Ratio 7.67 / 3.08SteelEachSCS28- SKU:
- SCS28
- Availability:
- Ships Same Business Day
- Weight:
- 4.75 LBS
- MFG Part #:
- 28
$187.99 -
SCS Quick Change Gear Set 27
SCS GEARS
$187.99Quick Change Gear SetProfessionalSet 2710 Spline4.11 Ratio 6.35 / 2.664.86 Ratio 7.51 / 3.15SteelEachSCS27- SKU:
- SCS27
- Availability:
- Ships Same Business Day
- Weight:
- 4.73 LBS
- MFG Part #:
- 27
$187.99Qty in Cart: 0Quantity:Price:$187.99Subtotal: -
SCS Quick Change Gear Set 26
SCS GEARS
$187.99Quick Change Gear SetProfessionalSet 2610 Spline4.11 Ratio 4.41 / 3.834.86 Ratio 5.22 / 4.52SteelEachSCS26- SKU:
- SCS26
- Availability:
- Ships Same Business Day
- Weight:
- 4.54 LBS
- MFG Part #:
- 26
$187.99 -
SCS Quick Change Gear Set 25
SCS GEARS
$187.99Quick Change Gear SetProfessionalSet 2510 Spline4.11 Ratio 4.52 / 3.744.86 Ratio 5.35 / 4.42SteelEachSCS25- SKU:
- SCS25
- Availability:
- Ships Same Business Day
- Weight:
- 5.45 LBS
- MFG Part #:
- 25
$187.99 -
SCS Quick Change Gear Set 24
SCS GEARS
$187.99Quick Change Gear SetProfessionalSet 2410 Spline4.11 Ratio 5.96 / 2.834.86 Ratio 7.04 / 3.35SteelEachSCS24- SKU:
- SCS24
- Availability:
- Ships Same Business Day
- Weight:
- 4.88 LBS
- MFG Part #:
- 24
$187.99 -
SCS Quick Change Gear Set 23
SCS GEARS
$187.99Quick Change Gear SetProfessionalSet 2310 Spline4.11 Ratio 6.16 / 2.744.86 Ratio 7.29 / 3.24SteelEachSCS23- SKU:
- SCS23
- Availability:
- Ships Same Business Day
- Weight:
- 4.93 LBS
- MFG Part #:
- 23
$187.99 -
SCS Quick Change Gear Set 22
SCS GEARS
$187.99Quick Change Gear SetProfessionalSet 2210 Spline4.11 Ratio 5.41 / 3.124.86 Ratio 6.39 / 3.69SteelEachSCS22- SKU:
- SCS22
- Availability:
- Ships Same Business Day
- Weight:
- 5.20 LBS
- MFG Part #:
- 22
$187.99 -
SCS Quick Change Gear Set 21
SCS GEARS
$187.99Quick Change Gear SetProfessionalSet 2110 Spline4.11 Ratio 6.28 / 2.694.86 Ratio 7.43 / 3.18SteelEachSCS21- SKU:
- SCS21
- Availability:
- Ships Same Business Day
- Weight:
- 5.03 LBS
- MFG Part #:
- 21
$187.99 -
SCS Quick Change Gear Set 20
SCS GEARS
$187.99Quick Change Gear SetProfessionalSet 2010 Spline4.11 Ratio 5.34 / 3.164.86 Ratio 6.32 / 3.74SteelEachSCS20- SKU:
- SCS20
- Availability:
- Ships Same Business Day
- Weight:
- 5.17 LBS
- MFG Part #:
- 20
$187.99 -
SCS Quick Change Gear Set 19
SCS GEARS
$187.99Quick Change Gear SetProfessionalSet 1910 Spline4.11 Ratio 4.89 / 3.454.86 Ratio 5.78 / 4.08SteelEachSCS19- SKU:
- SCS19
- Availability:
- Ships Same Business Day
- Weight:
- 5.22 LBS
- MFG Part #:
- 19
$187.99Qty in Cart: 0Quantity:Price:$187.99Subtotal: -
SCS Quick Change Gear Set 18
SCS GEARS
$187.99Quick Change Gear SetProfessionalSet 1810 Spline4.11 Ratio 5.19 / 3.254.86 Ratio 6.13 / 3.85SteelEachSCS18- SKU:
- SCS18
- Availability:
- Ships Same Business Day
- Weight:
- 5.34 LBS
- MFG Part #:
- 18
$187.99 -
SCS Quick Change Gear Set 17
SCS GEARS
$187.99Quick Change Gear SetProfessionalSet 1710 Spline4.11 Ratio 4.76 / 3.554.86 Ratio 5.63 / 4.19SteelEachSCS17- SKU:
- SCS17
- Availability:
- Ships Same Business Day
- Weight:
- 5.47 LBS
- MFG Part #:
- 17
$187.99 -
SCS Quick Change Gear Set 16
SCS GEARS
$187.99Quick Change Gear SetProfessionalSet 1610 Spline4.11 Ratio 5.48 / 3.084.86 Ratio 6.48 / 3.65SteelEachSCS16- SKU:
- SCS16
- Availability:
- Ships Same Business Day
- Weight:
- 5.03 LBS
- MFG Part #:
- 16
$187.99 -
SCS Quick Change Gear Set 15K
SCS GEARS
$187.99Quick Change Gear SetProfessionalSet 15K10 Spline4.11 Ratio 4.38 / 3.854.86 Ratio 5.18 / 4.56SteelEachSCS15K- SKU:
- SCS15K
- Availability:
- Ships Same Business Day
- Weight:
- 6.19 LBS
- MFG Part #:
- 15K
$187.99 -
SCS Quick Change Gear Set 15
SCS GEARS
$187.99Quick Change Gear SetProfessionalSet 1510 Spline4.11 Ratio 4.33 / 3.904.86 Ratio 5.12 / 4.61SteelEachSCS15- SKU:
- SCS15
- Availability:
- Ships Same Business Day
- Weight:
- 5.51 LBS
- MFG Part #:
- 15
$187.99 -
SCS Quick Change Gear Set 14K
SCS GEARS
$187.99Quick Change Gear SetProfessionalSet 14K10 Spline4.11 Ratio 5.76 / 2.934.86 Ratio 6.81 / 3.47SteelEachSCS14K- SKU:
- SCS14K
- Availability:
- Ships Same Business Day
- Weight:
- 5.01 LBS
- MFG Part #:
- 14K
$187.99 -
SCS Quick Change Gear Set 14
SCS GEARS
$187.99Quick Change Gear SetProfessionalSet 1410 Spline4.11 Ratio 5.72 / 2.954.86 Ratio 6.76 / 3.50SteelEachSCS14- SKU:
- SCS14
- Availability:
- Ships Same Business Day
- Weight:
- 5.05 LBS
- MFG Part #:
- 14
$187.99 -
SCS Quick Change Gear Set 13
SCS GEARS
$187.99Quick Change Gear SetProfessionalSet 1310 Spline4.11 Ratio 5.14 / 3.294.86 Ratio 6.08 / 3.89SteelEachSCS13- SKU:
- SCS13
- Availability:
- Ships Same Business Day
- Weight:
- 5.15 LBS
- MFG Part #:
- 13
$187.99 -
SCS Quick Change Gear Set 12
SCS GEARS
$187.99Quick Change Gear SetProfessionalSet 1210 Spline4.11 Ratio 4.58 / 3.684.86 Ratio 5.42 / 4.36SteelEachSCS12- SKU:
- SCS12
- Availability:
- Ships Same Business Day
- Weight:
- 4.66 LBS
- MFG Part #:
- 12
$187.99Qty in Cart: 0Quantity:Price:$187.99Subtotal: