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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DMI Timken Big Pinion Bearing RRC-1311
DIVERSIFIED MACHINE
$96.99Timken Big Pinion BearingPinion BearingBigSteelDMI CT-1 10 in Ring and PinionEachDMIRRC-1311- SKU:
- DMIRRC-1311
- Availability:
- Ships Same Business Day
- Weight:
- 0.77 LBS
- MFG Part #:
- RRC-1311
$96.99 -
DMI 4.12 Ring & Pinion RRC-1300
DIVERSIFIED MACHINE
$452.994.12 Ring & Pinion Ring and Pinion4.12 Ratio10 SplineSteelDMI 10 in Quick ChangeKitDMIRRC-1300- SKU:
- DMIRRC-1300
- Availability:
- Ships Same Business Day
- Weight:
- 14.29 LBS
- MFG Part #:
- RRC-1300
$452.99 -
DMI CT1 Spool Shim Kit RRC-1276
DIVERSIFIED MACHINE
$42.99CT1 Spool Shim Kit Differential Shim2.066 in IDSteelSpoolCT-1Bulldog Quick ChangeSet of 12DMIRRC-1276- SKU:
- DMIRRC-1276
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- MFG Part #:
- RRC-1276
$42.99 -
DMI CT1 Aluminum Spool RRC-1270
DIVERSIFIED MACHINE
$391.99CT1 Aluminum Spool Spool31 SplineAluminumDMI Bulldog Quick ChangeEachDMIRRC-1270- SKU:
- DMIRRC-1270
- Availability:
- Ships Same Business Day
- Weight:
- 5.87 LBS
- MFG Part #:
- RRC-1270
$391.99 -
DMI CT1 Side Bell Bearing Alum Spool RRC-1171
DIVERSIFIED MACHINE
$28.99CT1 Side Bell Bearing Alum SpoolAxle BearingSide BellAluminum SpoolDMI Bulldog CT-1 SpoolEachDMIRRC-1171- SKU:
- DMIRRC-1171
- Availability:
- Ships Same Business Day
- Weight:
- 5.87 LBS
- MFG Part #:
- RRC-1171
$28.99 -
DMI CT1 Side Bell Race RRC-1170
DIVERSIFIED MACHINE
$13.99CT1 Side Bell Race Axle Bearing RaceSteelDMI Bulldog CT-1 Side BellEachDMIRRC-1170- SKU:
- DMIRRC-1170
- Availability:
- Ships Same Business Day
- Weight:
- 0.36 LBS
- MFG Part #:
- RRC-1170
$13.99 -
DMI Friction Fighter Quick Change Gears 4G FFQCG-4G
DIVERSIFIED MACHINE
$355.99Friction Fighter Quick Change Gears 4GQuick Change Gear SetFriction FighterSet 4G10 Spline4.12 Ratios 5.27 / 3.234.86 Ratios 6.21 / 3.81SteelEachDMIFFQCG-4G- SKU:
- DMIFFQCG-4G
- Availability:
- Ships Same Business Day
- Weight:
- 4.50 LBS
- MFG Part #:
- FFQCG-4G
$355.99Qty in Cart: 0Quantity:Price:$355.99Subtotal: -
DMI Friction Fighter Quick Change Gears 23 FFQCG-23
DIVERSIFIED MACHINE
$355.99Friction Fighter Quick Change Gears 23Quick Change Gear SetFriction FighterSet 2310 Spline4.12 Ratios 6.18 / 2.754.86 Ratios 7.29 / 3.24SteelEachDMIFFQCG-23- SKU:
- DMIFFQCG-23
- Availability:
- Ships Same Business Day
- Weight:
- 4.20 LBS
- MFG Part #:
- FFQCG-23
$355.99 -
DMI Friction Fighter Quick Change Gears 16 FFQCG-16
DIVERSIFIED MACHINE
$355.99Friction Fighter Quick Change Gears 16Quick Change Gear SetFriction FighterSet 1610 Spline4.12 Ratios 5.49 / 3.094.86 Ratios 6.48 / 3.65SteelEachDMIFFQCG-16- SKU:
- DMIFFQCG-16
- Availability:
- Ships Same Business Day
- Weight:
- 4.50 LBS
- MFG Part #:
- FFQCG-16
$355.99Qty in Cart: 0Quantity:Price:$355.99Subtotal: -
Detroit Locker - Ford 9in 31-Spline Center R18703A
DETROIT LOCKER-TRACTECH
$964.99Detroit Locker - Ford 9in 31-Spline CenterDifferential CarrierCircle Track Detroit Locker31 SplineIronFord 9 inEachDETR18703A- SKU:
- DETR18703A
- Availability:
- Ships Same Business Day
- Weight:
- 16.20 LBS
- MFG Part #:
- R18703A
$964.99 -
Detroit Truetrac - Ford 8in 28-Spline 912A616
DETROIT LOCKER-TRACTECH
$814.99Detroit Truetrac - Ford 8in 28-SplineDifferential CarrierDetroit Truetrac28 SplineIronFord 8 inEachDET912A616- SKU:
- DET912A616
- Availability:
- Ships Same Business Day
- Weight:
- 16.60 LBS
- MFG Part #:
- 912A616
$814.99 -
Detroit Truetrac - Ford 9in 28-Spline 912A587
DETROIT LOCKER-TRACTECH
$685.99Detroit Truetrac - Ford 9in 28-SplineDifferential CarrierDetroit Truetrac28 Spline3.25 Ratio and UpIronFord 9 inEachDET912A587- SKU:
- DET912A587
- Availability:
- Ships Same Business Day
- Weight:
- 16.46 LBS
- MFG Part #:
- 912A587
$685.99 -
Detroit Truetrac - GM 7.625 10-Bolt 912A317
DETROIT LOCKER-TRACTECH
$642.99Detroit Truetrac - GM 7.625 10-BoltDifferential CarrierDetroit Truetrac28 Spline3.23 Ratio and UpIron7.5 / 7.6 inGM 10-BoltEachDET912A317- SKU:
- DET912A317
- Availability:
- Ships Same Business Day
- Weight:
- 20.57 LBS
- MFG Part #:
- 912A317
$642.99 -
Detroit Truetrac - GM 7.5 26-Spline 911A415
DETROIT LOCKER-TRACTECH
$659.99Detroit Truetrac - GM 7.5 26-SplineDifferential CarrierDetroit Truetrac26 Spline3.08 Ratio and LowerIron7.5 inGM 10-BoltEachDET911A415- SKU:
- DET911A415
- Availability:
- Ships Same Business Day
- Weight:
- 20.88 LBS
- MFG Part #:
- 911A415
$659.99 -
Detroit Truetrac - GM 7.5 26-Spline 911A319
DETROIT LOCKER-TRACTECH
$653.99Detroit Truetrac - GM 7.5 26-SplineDifferential CarrierDetroit Truetrac26 Spline3.23 Ratio and UpIron7.5 inGM 10-BoltEachDET911A319- SKU:
- DET911A319
- Availability:
- Ships Same Business Day
- Weight:
- 20.69 LBS
- MFG Part #:
- 911A319
$653.99 -
Eaton Posi - GM 7.5 10-Bolt 26-Spline 19663-010
DETROIT LOCKER-TRACTECH
$696.99Eaton Posi - GM 7.5 10-Bolt 26-SplineDifferential CarrierEaton Posi26 Spline3.23 Ratio and UpIron7.5 inGM 10-BoltEachDET19663-010- SKU:
- DET19663-010
- Availability:
- Ships Same Business Day
- Weight:
- 17.13 LBS
- MFG Part #:
- 19663-010
$696.99 -
Eaton Posi - GM 10-Bolt 64-82 8.2in 19603-010
DETROIT LOCKER-TRACTECH
$750.99Eaton Posi - GM 10-Bolt 64-82 8.2inDifferential CarrierEaton Posi28 Spline3.08 Ratio and UpIron8.2 inGM 10-BoltEachDET19603-010- SKU:
- DET19603-010
- Availability:
- Ships Same Business Day
- Weight:
- 20.25 LBS
- MFG Part #:
- 19603-010
$750.99 -
Coleman GM Yoke STD 853-Y
COLEMAN MACHINE
$101.99GM Yoke STD Slip Yoke27 Spline5.375 in LongSteelNatural1310 U-JointMuncie / Powerglide / Super T10 / TH350 / T56 / 4L60EEachCOL853-Y- SKU:
- COL853-Y
- Availability:
- Ships Same Business Day
- Weight:
- 1.95 LBS
- MFG Part #:
- 853-Y
$101.99 -
Coleman Steel Spool GM 7.5in Thick Ring Gear 22545
COLEMAN MACHINE
$589.99Steel Spool GM 7.5in Thick Ring GearSpoolLightweightFullsize26 SplineSteel7.5 in Ring GearGM 10-BoltEachCOL22545- SKU:
- COL22545
- Availability:
- Ships Same Business Day
- Weight:
- 11.15 LBS
- MFG Part #:
- 22545
$589.99 -
Coleman Steel Drive Flange 5x5/ 5x4-3/4 5/8in Studs 21632
COLEMAN MACHINE
$174.99Steel Drive Flange 5x5/ 5x4-3/4 5/8in StudsDrive Flange5 x 5 and 5 x 4-3/4 in Wheel Bolt Pattern24 SplineBolt-On CapSteelCadmiumNaturalEachCOL21632- SKU:
- COL21632
- Availability:
- Ships Same Business Day
- Weight:
- 3.36 LBS
- MFG Part #:
- 21632
$174.99