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 7
SCS GEARS
$187.99Quick Change Gear SetProfessionalSet 710 Spline4.11 Ratio 4.64 / 3.634.86 Ratio 5.49 / 4.30SteelEachSCS07- SKU:
- SCS07
- Availability:
- Ships Same Business Day
- Weight:
- 5.22 LBS
- MFG Part #:
- 7
$187.99 -
SCS Quick Change Gear Set 6
SCS GEARS
$187.99Quick Change Gear SetProfessionalSet 610 Spline4.11 Ratio 4.46 / 3.784.86 Ratio 5.28 / 4.47SteelEachSCS06- SKU:
- SCS06
- Availability:
- Ships Same Business Day
- Weight:
- 4.60 LBS
- MFG Part #:
- 6
$187.99 -
SCS Quick Change Gear Set 5
SCS GEARS
$187.99Quick Change Gear SetProfessionalSet 510 Spline4.11 Ratio 4.28 / 3.944.86 Ratio 5.07 / 4.66SteelEachSCS05- SKU:
- SCS05
- Availability:
- Ships Same Business Day
- Weight:
- 5.38 LBS
- MFG Part #:
- 5
$187.99 -
SCS Quick Change Gear Set 04K
SCS GEARS
$187.99Quick Change Gear SetProfessionalSet 04K10 Spline4.11 Ratio 5.26 / 3.214.86 Ratio 6.21 / 3.80SteelEachSCS04K- SKU:
- SCS04K
- Availability:
- Ships Same Business Day
- Weight:
- 5.32 LBS
- MFG Part #:
- 04K
$187.99 -
SCS Quick Change Gear Set 4
SCS GEARS
$187.99Quick Change Gear SetProfessionalSet 410 Spline4.11 Ratio 5.31 / 3.184.86 Ratio 6.28 / 3.76SteelEachSCS04- SKU:
- SCS04
- Availability:
- Ships Same Business Day
- Weight:
- 4.95 LBS
- MFG Part #:
- 4
$187.99 -
SCS Quick Change Gear Set 3
SCS GEARS
$187.99Quick Change Gear SetProfessionalSet 310 Spline4.11 Ratio 5.10 / 3.314.86 Ratio 6.03 / 3.92SteelEachSCS03- SKU:
- SCS03
- Availability:
- Ships Same Business Day
- Weight:
- 4.90 LBS
- MFG Part #:
- 3
$187.99 -
SCS Quick Change Gear Set 2
SCS GEARS
$187.99Quick Change Gear SetProfessionalSet 210 Spline4.11 Ratio 4.26 / 3.964.86 Ratio 5.04 / 4.68SteelEachSCS02- SKU:
- SCS02
- Availability:
- Ships Same Business Day
- Weight:
- 4.47 LBS
- MFG Part #:
- 2
$187.99 -
SCS Quick Change Gear Set 1
SCS GEARS
$187.99Quick Change Gear SetProfessionalSet 110 Spline4.11 Ratio 4.11 / 4.114.86 Ratio 4.86 / 4.86SteelEachSCS01- SKU:
- SCS01
- Availability:
- Ships Same Business Day
- Weight:
- 4.79 LBS
- MFG Part #:
- 1
$187.99Qty in Cart: 0Quantity:Price:$187.99Subtotal: -
SBC Flexplate - SFI- 168 Tooth- Ext. Balance FP-400-SFI
SCAT ENTERPRISES
$88.99Flexplate168 ToothSFI 29.1SteelExternal Balance2 Piece SealSmall Block ChevyEachSCAFP-400-SFI- SKU:
- SCAFP-400-SFI
- Availability:
- Ships Same Business Day
- Weight:
- 6.90 LBS
- MFG Part #:
- FP-400-SFI
$88.99 -
SBC Flexplate - SFI- 168 Tooth- Int. Balance FP-350-SFI
SCAT ENTERPRISES
$85.99Flexplate168 ToothSFI 29.1SteelInternal Balance2 Piece SealChevy V8EachSCAFP-350-SFI- SKU:
- SCAFP-350-SFI
- Availability:
- Ships Same Business Day
- Weight:
- 6.40 LBS
- MFG Part #:
- FP-350-SFI
$85.99 -
SBC Flexplate - SFI- 168 Tooth- Ext. Balance FP-350L-SFI
SCAT ENTERPRISES
$90.99Flexplate168 ToothSFI 29.1SteelExternal Balance1 Piece SealSmall Block ChevyEachSCAFP-350L-SFI- SKU:
- SCAFP-350L-SFI
- Availability:
- Ships Same Business Day
- Weight:
- 7.26 LBS
- MFG Part #:
- FP-350L-SFI
$90.99 -
SBC Flexplate - SFI- 153 Tooth- Ext. Balance FP-350L-153-SFI
SCAT ENTERPRISES
$86.99Flexplate153 ToothSFI 29.1SteelExternal Balance1 Piece Seal9.5 in Bolt CircleSmall Block ChevyEachSCAFP-350L-153-SFI- SKU:
- SCAFP-350L-153-SFI
- Availability:
- Ships Same Business Day
- Weight:
- 5.86 LBS
- MFG Part #:
- FP-350L-153-SFI
$86.99 -
SBC Flexplate - SFI- 153 Tooth- Int. Balance FP-305-SFI
SCAT ENTERPRISES
$79.99Flexplate153 ToothSFI 29.1SteelInternal Balance8.5-9.5 in Bolt CircleSmall Block ChevyEachSCAFP-305-SFI- SKU:
- SCAFP-305-SFI
- Availability:
- Ships Same Business Day
- Weight:
- 5.64 LBS
- MFG Part #:
- FP-305-SFI
$79.99 -
SBF Flexplate - SFI- 164 Tooth- 50.5oz. FP-302L-SFI
SCAT ENTERPRISES
$79.99Flexplate164 ToothSFI 29.1Steel50.5 oz External Balance11.5 in Bolt CircleSmall Block FordEachSCAFP-302L-SFI- SKU:
- SCAFP-302L-SFI
- Availability:
- Ships Same Business Day
- Weight:
- 8.17 LBS
- MFG Part #:
- FP-302L-SFI
$79.99 -
SBF Flexplate - SFI- 164 Tooth- 28.8oz. FP-302E-SFI
SCAT ENTERPRISES
$79.99Flexplate164 ToothSFI 29.1Steel28.2 oz External Balance11.5 in Bolt CircleSmall Block FordEachSCAFP-302E-SFI- SKU:
- SCAFP-302E-SFI
- Availability:
- Ships Same Business Day
- Weight:
- 8.23 LBS
- MFG Part #:
- FP-302E-SFI
$79.99 -
SBF Flexplate - SFI- 157 Tooth- 28.8oz. FP-302-157-SFI
SCAT ENTERPRISES
$113.99Flexplate157 ToothSFI 29.1Steel28.2 oz External Balance10.5 in Bolt CircleSmall Block FordEachSCAFP-302-157-SFI- SKU:
- SCAFP-302-157-SFI
- Availability:
- Ships Same Business Day
- Weight:
- 6.44 LBS
- MFG Part #:
- FP-302-157-SFI
$113.99 -
Racequip Shifter Boot FR Medium 9in Tall 871003
RACEQUIP
$76.45Shifter Boot7-1/2 x 5-1/2 in Base9 in TallAluminum / Fire Retardant Cotton FR3BlackKitRQP871003- SKU:
- RQP871003
- Availability:
- Ships Same Business Day
- Weight:
- 0.80 LBS
- MFG Part #:
- 871003
$76.45 -
GM 8.5 10 Bolt Car Mega Installation Kit 83-1021-M
RICHMOND
$198.99Differential Installation KitBearings / Crush Sleeve / Gaskets / Hardware / Seals / Shims / Thread Locker8.5 inGM 10-BoltKitRIC83-1021-M- SKU:
- RIC83-1021-M
- Availability:
- Ships Same Business Day
- Weight:
- 7.13 LBS
- MFG Part #:
- 83-1021-M
$198.99 -
6.20 Ratio 9in Ford 69-0290-1
RICHMOND
$499.49Ring and Pinion6.20 Ratio28 Spline PinionFord 9 inKitRIC69-0290-1- SKU:
- RIC69-0290-1
- Availability:
- Ships Same Business Day
- Weight:
- 19.36 LBS
- MFG Part #:
- 69-0290-1
$499.49 -
5.83 Ratio 9in Ford 69-0288-1
RICHMOND
$361.99Ring and Pinion5.83 Ratio28 Spline PinionFord 9 inKitRIC69-0288-1- SKU:
- RIC69-0288-1
- Availability:
- Ships Same Business Day
- Weight:
- 19.31 LBS
- MFG Part #:
- 69-0288-1
$361.99