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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PEM Standard Quick Change Gears 61001
PEM
$80.99Quick change gears eliminate downtime between races and testing sessions, letting you swap ratios in minutes without breaking down your entire differential. Whether you're fine-tuning for different...PEM61001- SKU:
- PEM61001
- Availability:
- Ships Same Business Day
- Weight:
- 6.38 LBS
- MFG Part #:
- 61001
$80.99 -
7.33 Ratio 9in Ford AX F890733AX
MOTIVE GEAR
$484.99If you're running a 9-inch Ford rear end and need aggressive acceleration or track-focused performance, a 7.33 ratio ring and pinion is your ticket to shorter gear multiplication and quicker...MOTF890733AX- SKU:
- MOTF890733AX
- Availability:
- Ships Same Business Day
- Weight:
- 19.74 LBS
- MFG Part #:
- F890733AX
$484.99 -
7.16 Ratio 9in Ford AX F890716AX
MOTIVE GEAR
$484.99A 7.16 gear ratio is the sweet spot for street-strip applications and naturally aspirated small-blocks that need strong acceleration without sacrificing highway cruising. This AX Series...MOTF890716AX- SKU:
- MOTF890716AX
- Availability:
- Ships Same Business Day
- Weight:
- 19.80 LBS
- MFG Part #:
- F890716AX
$484.99 -
7.00 Ratio 9in Ford AX F890700AX
MOTIVE GEAR
$429.99Whether you're building a dedicated strip killer or fine-tuning a street-strip hybrid, your rear axle ratio is the foundation of driveline performance. The 7.00 ratio strikes the sweet spot between...MOTF890700AX- SKU:
- MOTF890700AX
- Availability:
- Ships Same Business Day
- Weight:
- 19.35 LBS
- MFG Part #:
- F890700AX
$429.99 -
6.83 Ratio 9in Ford AX F890683AX
MOTIVE GEAR
$484.99If you're running a 9-inch Ford rear end and need serious acceleration or track performance, a 6.83 ratio gear set transforms your power delivery into usable wheel speed. The AX Series ring and...MOTF890683AX- SKU:
- MOTF890683AX
- Availability:
- Ships Same Business Day
- Weight:
- 19.10 LBS
- MFG Part #:
- F890683AX
$484.99 -
6.66 Ratio 9in Ford AX F890666AX
MOTIVE GEAR
$484.99Running a 6.66 ratio gear set transforms your 9-inch Ford differential into a tire-shredding machine that excels on the strip or street. Whether you're building a dedicated drag car or upgrading an...MOTF890666AX- SKU:
- MOTF890666AX
- Availability:
- Ships Same Business Day
- Weight:
- 19.11 LBS
- MFG Part #:
- F890666AX
$484.99 -
6.50 Ratio 9in Ford AX F890650AX
MOTIVE GEAR
$484.99Whether you're building a dedicated track car or maximizing acceleration in your Ford 9-inch equipped hot rod, a 6.50 ratio ring and pinion transforms your power delivery by shortening gear...MOTF890650AX- SKU:
- MOTF890650AX
- Availability:
- Ships Same Business Day
- Weight:
- 19.22 LBS
- MFG Part #:
- F890650AX
$484.99 -
6.50 Ratio 9in Ford F890650
MOTIVE GEAR
$369.99If you're running a 9-inch Ford rear end and need quicker acceleration off the line, a 6.50 ratio ring and pinion delivers the gear reduction necessary for improved throttle response and faster...MOTF890650- SKU:
- MOTF890650
- Availability:
- Ships Same Business Day
- Weight:
- 21.64 LBS
- MFG Part #:
- F890650
$369.99 -
6.33 Ratio 9in Ford AX F890633AX
MOTIVE GEAR
$484.99If you're running a Ford 9-inch rear end and need a gear ratio that delivers quick acceleration without sacrificing highway cruising capability, the 6.33 ratio ring and pinion set is the sweet spot...MOTF890633AX- SKU:
- MOTF890633AX
- Availability:
- Ships Same Business Day
- Weight:
- 18.83 LBS
- MFG Part #:
- F890633AX
$484.99 -
6.33 Ratio 9in Ford F890633
MOTIVE GEAR
$258.32If you're serious about extracting maximum acceleration and lower cruising RPMs from your Ford 9-inch differential, a 6.33 ratio ring and pinion swap is one of the highest-impact upgrades you can...MOTF890633- SKU:
- MOTF890633
- Availability:
- Ships Same Business Day
- Weight:
- 20.03 LBS
- MFG Part #:
- F890633
$258.32Qty in Cart: 0Quantity:Price:$258.32Subtotal: -
6.20 Ratio 9in Ford AX F890620AX
MOTIVE GEAR
$484.99If you're running a Ford 9-inch rear end and need aggressive acceleration and torque multiplication, a 6.20 ratio ring and pinion is the direct path to faster 60-foot times and improved street...MOTF890620AX- SKU:
- MOTF890620AX
- Availability:
- Ships Same Business Day
- Weight:
- 18.20 LBS
- MFG Part #:
- F890620AX
$484.99 -
6.14 Ratio 9in Ford AX F890614AX
MOTIVE GEAR
$484.99A 6.14 ratio ring and pinion set is essential for high-RPM racing applications where quick acceleration and responsive throttle control directly impact lap times. Whether you're running a street...MOTF890614AX- SKU:
- MOTF890614AX
- Availability:
- Ships Same Business Day
- Weight:
- 18.45 LBS
- MFG Part #:
- F890614AX
$484.99 -
6.00 Ratio 9in Ford AX F890600AX
MOTIVE GEAR
$484.99If you're serious about extracting maximum power from your Ford 9-inch differential, a properly sized ring and pinion is non-negotiable. The 6.00 ratio in this AX series kit delivers the low-end...MOTF890600AX- SKU:
- MOTF890600AX
- Availability:
- Ships Same Business Day
- Weight:
- 18.83 LBS
- MFG Part #:
- F890600AX
$484.99 -
6.00 Ratio 9in Ford F890600
MOTIVE GEAR
$369.99If you're serious about extracting maximum power from your Ford 9-inch differential, a 6.00 ratio ring and pinion is the direct path to improved acceleration and off-the-line performance. This kit...MOTF890600- SKU:
- MOTF890600
- Availability:
- Ships Same Business Day
- Weight:
- 19.79 LBS
- MFG Part #:
- F890600
$369.99 -
5.83 Ratio 9in Ford F890583
MOTIVE GEAR
$369.99If you're serious about acceleration and off-the-line performance, a 5.83 ratio gear set transforms your Ford 9-inch differential into a responsive, gear-hungry machine. This aggressive ratio cuts...MOTF890583- SKU:
- MOTF890583
- Availability:
- Ships Same Business Day
- Weight:
- 19.54 LBS
- MFG Part #:
- F890583
$369.99 -
5.43 Ratio 9in Ford F890543
MOTIVE GEAR
$369.99If you're running a Ford 9-inch rear end and demand quicker acceleration off the line, the 5.43 Ratio Ring and Pinion Kit is engineered to deliver the gear multiplication you need. This...MOTF890543- SKU:
- MOTF890543
- Availability:
- Ships Same Business Day
- Weight:
- 19.37 LBS
- MFG Part #:
- F890543
$369.99 -
5.37 Ratio 9in Ford AX F890537AX
MOTIVE GEAR
$467.99If you're pushing your Ford 9-inch to its limits, your gear ratio directly determines how hard your engine works and when you hit peak power. The 5.37 ratio in this AX series kit delivers aggressive...MOTF890537AX- SKU:
- MOTF890537AX
- Availability:
- Ships Same Business Day
- Weight:
- 18.60 LBS
- MFG Part #:
- F890537AX
$467.99 -
5.29 Ratio 9in Ford AX F890529AX
MOTIVE GEAR
$454.99If you're running a 9-inch Ford rear end and need to dial in your final drive ratio for track performance or street duty, this 5.29 ring-and-pinion kit delivers the gearing precision that separates...MOTF890529AX- SKU:
- MOTF890529AX
- Availability:
- Ships Same Business Day
- Weight:
- 17.95 LBS
- MFG Part #:
- F890529AX
$454.99Qty in Cart: 0Quantity:Price:$454.99Subtotal: -
5.14 Ratio 9in Ford F890514
MOTIVE GEAR
$369.99If you're running a Ford 9-inch rear and need aggressive acceleration off the line, a 5.14 ratio ring and pinion is your answer. This steep ratio dramatically reduces wheel slip during launches and...MOTF890514- SKU:
- MOTF890514
- Availability:
- Ships Same Business Day
- Weight:
- 19.40 LBS
- MFG Part #:
- F890514
$369.99 -
3.00 Ratio 9in Ford RIng & Pinion F890300
MOTIVE GEAR
$369.99A 3.00 ratio delivers the perfect balance between highway cruising and consistent acceleration, making it the ideal choice for street-strip applications and daily-driven performance vehicles. This...MOTF890300- SKU:
- MOTF890300
- Availability:
- Ships Same Business Day
- Weight:
- 18.97 LBS
- MFG Part #:
- F890300
$369.99
