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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Bert New Style Flywheel Alum HTD 370-L-H-BOD-Kit
BERT TRANSMISSIONS
$235.99Reducing rotational mass is one of the most effective ways to improve engine response and acceleration in a high-performance application. This Bert lightweight aluminum flywheel cuts parasitic drag...BER370-L-H- SKU:
- BER370-L-H
- Availability:
- Ships Same Business Day
- Weight:
- 2.04 LBS
- MFG Part #:
- 370-L-H-BOD-Kit
$235.99 -
Bert New Style Flywheel Alum Gilmore 370-L-G-BOD-Kit
BERT TRANSMISSIONS
$222.99A lightweight aluminum flywheel is essential for reducing rotational mass and improving engine response, especially in high-performance Chevy V8 applications where quick throttle transitions matter...BER370-L-G- SKU:
- BER370-L-G
- Availability:
- Ships Same Business Day
- Weight:
- 2.06 LBS
- MFG Part #:
- 370-L-G-BOD-Kit
$222.99 -
Bert Flywheel Ring Ford Internal Balance 370-F
BERT TRANSMISSIONS
$179.99When you're running a high-performance Small Block Ford with a Bert transmission, your flywheel needs to match the precision of your build. This internal balance flywheel ring delivers the rotational...BER370-F- SKU:
- BER370-F
- Availability:
- Ships Same Business Day
- Weight:
- 2.96 LBS
- MFG Part #:
- 370-F
$179.99 -
Bert New Style Flywheel Ring 370
BERT TRANSMISSIONS
$102.99The Bert New Style Flywheel Ring 370 is engineered for Bert transmissions paired with Chevy V8 engines, delivering the precision balance and durability required for high-RPM racing applications. This...BER370- SKU:
- BER370
- Availability:
- Ships Same Business Day
- Weight:
- 1.27 LBS
- MFG Part #:
- 370
$102.99 -
Bert Double Seal Ball Spline Conversion Kit 44647
BERT TRANSMISSIONS
$509.99If you're running a Bert ball spline tailshaft, a compromised seal will cost you fluid, power, and reliability on the track. This double seal conversion kit upgrades your housing with redundant...BER3-27- SKU:
- BER3-27
- Availability:
- Ships Same Business Day
- Weight:
- 1.43 LBS
- MFG Part #:
- 44282
$509.99 -
Bert Flywheel Shim New Chevy 324-NC
BERT TRANSMISSIONS
$2.09Precise flywheel shimming is critical for eliminating run-out issues and ensuring proper clutch engagement on late-model small block Chevy and V6 engines. A misaligned flywheel creates vibration,...BER324-NC- SKU:
- BER324-NC
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- MFG Part #:
- 324-NC
$2.09 -
Bert Flywheel New Chevy HTD 320-NC-EXT
BERT TRANSMISSIONS
$304.99A quality flywheel is critical to your engine's ability to deliver consistent power and smooth operation, especially in high-performance and racing applications. The Bert Flywheel HTD 320-NC-EXT is...BER320-NCEXT- SKU:
- BER320-NCEXT
- Availability:
- Ships Same Business Day
- Weight:
- 4.85 LBS
- MFG Part #:
- 320-NC-EXT
$304.99 -
Bert Flywheel LS Chevy HTD 320-LS1
BERT TRANSMISSIONS
$226.99The Bert 320-LS1 HTD Flywheel is engineered for LS-series engines that demand precision power delivery and reliable clutch engagement. Built with internal balancing and high-tensile steel...BER320-LS1- SKU:
- BER320-LS1
- Availability:
- Ships Same Business Day
- Weight:
- 4.00 LBS
- MFG Part #:
- 320-LS1
$226.99 -
Bert Flywheel Ext. Balance Chevy 400 HTD 320-400
BERT TRANSMISSIONS
$305.99If you're running a Chevy 400 with external balance requirements, this Bert flywheel is engineered to deliver the rotational stability and precision timing your engine demands. The HTD pulley design...BER320-400- SKU:
- BER320-400
- Availability:
- Ships Same Business Day
- Weight:
- 4.33 LBS
- MFG Part #:
- 320-400
$305.99 -
Bert Wear Bushing support Ball Spline 44640
BERT TRANSMISSIONS
$56.99The Bert Wear Bushing Support Ball Spline (44640) is an essential wear component for Bert ball spline transmissions, preventing premature bushing degradation and maintaining smooth power transfer...BER3-20- SKU:
- BER3-20
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- MFG Part #:
- 44275
$56.99 -
Bert Wear Bushing Ball Spline 44639
BERT TRANSMISSIONS
$6.99The wear bushing ball spline is a critical wear component in Bert ball spline transmissions that directly impacts shift quality and longevity. Over time, this bushing experiences friction and...BER3-19- SKU:
- BER3-19
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- MFG Part #:
- 44274
$6.99 -
Bert Stopper Washer Ball Spline 44634
BERT TRANSMISSIONS
$9.99If you're running a Bert transmission, proper tailshaft retention is non-negotiable—this stopper washer ensures your ball spline assembly stays secure under extreme load and shock. A single point of...BER3-14- SKU:
- BER3-14
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- MFG Part #:
- 44269
$9.99 -
Bert Steel Output Yoke for Ball Spline Trans 3-13-S
BERT TRANSMISSIONS
$245.99If you're running a Bert transmission with a ball spline tailshaft, this steel output yoke is a critical wear component that directly impacts driveline reliability and power transfer efficiency. A...BER3-13-S- SKU:
- BER3-13-S
- Availability:
- Ships Same Business Day
- Weight:
- 1.80 LBS
- MFG Part #:
- 3-13-S
$245.99 -
Bert Alum Output Yoke for Ball Spline Trans 44633
BERT TRANSMISSIONS
$239.99If you're running a Bert transmission with ball spline tailshaft housing, this aluminum output yoke is essential for reliable driveline connection and smooth power transfer. The lightweight...BER3-13- SKU:
- BER3-13
- Availability:
- Ships Same Business Day
- Weight:
- 0.80 LBS
- MFG Part #:
- 44268
$239.99 -
Bert Flywheel New SBC External Balance BER311-NCEXT
BERT TRANSMISSIONS
$237.99If you're running a Bert transmission on your Small Block Chevy, you need a flywheel engineered to match its external balance specifications—mismatches here cause vibration, premature wear, and...BER311-NCEXT- SKU:
- BER311-NCEXT
- Availability:
- Ships Same Business Day
- Weight:
- 3.51 LBS
- MFG Part #:
- 311-NC-EXT
$237.99 -
Bert Grease Fitting 310
BERT TRANSMISSIONS
$4.49Proper lubrication is critical to bellhousing longevity and smooth clutch operation, and the Bert Grease Fitting 310 ensures you can service your setup without compromising seal integrity. This...BER310- SKU:
- BER310
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- MFG Part #:
- 310
$4.49 -
Bert Ball Retaining Ring Fits New Style Seal 3-08B
BERT TRANSMISSIONS
$439.99If you're running a Bert transmission, the ball retaining ring is a critical component that keeps your tailshaft seal secure under load and heat cycles. A worn or damaged retaining ring compromises...BER3-08B- SKU:
- BER3-08B
- Availability:
- Ships Same Business Day
- Weight:
- 0.90 LBS
- MFG Part #:
- 3-08B
$439.99 -
Bert Spring 308
BERT TRANSMISSIONS
$8.99Proper idle gear spring tension is critical for smooth operation and longevity of your Bert bellhousing assembly. A worn or weak spring leads to gear slippage, inconsistent idle behavior, and...BER308- SKU:
- BER308
- Availability:
- Ships Same Business Day
- Weight:
- 0.03 LBS
- MFG Part #:
- 308
$8.99 -
Bert Ball Bearing 1/2in Ball Spline 44627
BERT TRANSMISSIONS
$1.99Precision ball bearings are critical wear components in high-performance transmissions—they enable smooth, efficient power transfer while handling extreme rotational speeds and loads. If you're...BER3-07- SKU:
- BER3-07
- Availability:
- Ships Same Business Day
- Weight:
- 0.03 LBS
- MFG Part #:
- 44262
$1.99 -
Bert Ball Spline Tailhousing 44625
BERT TRANSMISSIONS
$334.99If you're running a Bert Ball Spline transmission, the tailhousing is a critical structural component that directly impacts driveline integrity and longevity. This aluminum tailhousing handles the...BER3-05- SKU:
- BER3-05
- Availability:
- Ships Same Business Day
- Weight:
- 4.21 LBS
- MFG Part #:
- 44260
$334.99
