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 Ball Spline Tail Housing Overhaul Kit 3-BS-OK-N
BERT TRANSMISSIONS
$115.99Ball Spline Tail Housing Overhaul KitTailshaft Housing Rebuild Kit2 Seal StyleBert Ball Spline Tailshaft HousingsKitBER3-BS-OK-N- SKU:
- BER3-BS-OK-N
- Availability:
- Ships Same Business Day
- Weight:
- 0.53 LBS
- MFG Part #:
- 3-BS-OK-N
$115.99 -
Bert Overhaul Kit Ball Spline 3-BS-OK
BERT TRANSMISSIONS
$86.99Overhaul Kit Ball Spline Tailshaft Housing Rebuild KitBall Bearings / Grease / Seals / Wear RingBert Ball Spline Tailshaft HousingsKitBER3-BS-OK- SKU:
- BER3-BS-OK
- Availability:
- Ships Same Business Day
- Weight:
- 0.49 LBS
- MFG Part #:
- 3-BS-OK
$86.99 -
Bert Aluminum Hub HTD 371-L-H
BERT TRANSMISSIONS
$171.99Aluminum Hub HTD Crankshaft Coupler10 SplineHTD PulleyAluminumBert TransmissionsChevy V8EachBER371-L-H- SKU:
- BER371-L-H
- Availability:
- Ships Same Business Day
- Weight:
- 0.75 LBS
- MFG Part #:
- 371-L-H
$171.99 -
Bert Aluminum Hub Gilmer 371-L-G
BERT TRANSMISSIONS
$173.99Aluminum Hub Gilmer Crankshaft Coupler10 SplineGilmer PulleyAluminumBert TransmissionsChevy V8EachBER371-L-G- SKU:
- BER371-L-G
- Availability:
- Ships Same Business Day
- Weight:
- 0.77 LBS
- MFG Part #:
- 371-L-G
$173.99 -
Bert Steel Hub Gilmer 371-G
BERT TRANSMISSIONS
$144.99Steel Hub Gilmer Crankshaft Coupler10 SplineGilmer PulleySteelBert TransmissionsChevy V8EachBER371-G- SKU:
- BER371-G
- Availability:
- Ships Same Business Day
- Weight:
- 2.11 LBS
- MFG Part #:
- 371-G
$144.99 -
Bert Ford Windsor Flywheel Ring External Balance 370-WIN
BERT TRANSMISSIONS
$174.99Ford Windsor Flywheel Ring External BalanceFlywheelHigh Strength2 PieceSteelBert TransmissionExternal BalanceSmall Block FordKitBER370-WIN- SKU:
- BER370-WIN
- Availability:
- Ships Same Business Day
- Weight:
- 4.18 LBS
- MFG Part #:
- 370-WIN
$174.99 -
Bert New Style Flywheel Steel Gilmore 370-S-G-BOD-Kit
BERT TRANSMISSIONS
$219.99New Style Flywheel Steel GilmoreFlywheelHigh Strength2 PieceGilmer PulleySteelBert TransmissionInternal BalanceChevy V8KitBER370-S-G- SKU:
- BER370-S-G
- Availability:
- Ships Same Business Day
- Weight:
- 5.80 LBS
- MFG Part #:
- 370-S-G-BOD-Kit
$219.99 -
Bert New Style Flywheel Alum HTD 370-L-H-BOD-Kit
BERT TRANSMISSIONS
$234.99New Style Flywheel Alum HTDFlywheelLightweight2 PieceInternal BalanceHTD PulleyAluminumBert TransmissionChevy V8KitBER370-L-H- SKU:
- BER370-L-H
- Availability:
- Ships Same Business Day
- Weight:
- 2.04 LBS
- MFG Part #:
- 370-L-H-BOD-Kit
$234.99 -
Bert New Style Flywheel Alum Gilmore 370-L-G-BOD-Kit
BERT TRANSMISSIONS
$204.75New Style Flywheel Alum GilmoreFlywheelLightweight2 PieceInternal BalanceGilmer PulleyAluminumBert TransmissionChevy V8KitBER370-L-G- SKU:
- BER370-L-G
- Availability:
- Ships Same Business Day
- Weight:
- 2.06 LBS
- MFG Part #:
- 370-L-G-BOD-Kit
$204.75 -
Bert Flywheel Ring Ford Internal Balance 370-F
BERT TRANSMISSIONS
$169.99Flywheel Ring Ford Internal BalanceFlywheel2 PieceSteelBert TransmissionInternal BalanceSmall Block FordKitBER370-F- SKU:
- BER370-F
- Availability:
- Ships Same Business Day
- Weight:
- 2.96 LBS
- MFG Part #:
- 370-F
$169.99 -
Bert New Style Flywheel Ring 370
BERT TRANSMISSIONS
$98.99New Style Flywheel Ring Flywheel2 PieceSteelBert TransmissionInternal Balance2 Piece SealChevy V8EachBER370- SKU:
- BER370
- Availability:
- Ships Same Business Day
- Weight:
- 1.27 LBS
- MFG Part #:
- 370
$98.99 -
Bert Double Seal Ball Spline Conversion Kit 44647
BERT TRANSMISSIONS
$487.99Double Seal Ball Spline Conversion KitTailshaft Housing SealDouble Seal ConversionRubber / SteelNaturalBert Ball Spline Tailshaft HousingsKitBER3-27- SKU:
- BER3-27
- Availability:
- Ships Same Business Day
- Weight:
- 1.43 LBS
- MFG Part #:
- 44282
$487.99 -
Bert Flywheel Shim New Chevy 324-NC
BERT TRANSMISSIONS
$1.99Flywheel Shim New Chevy Flywheel Shim0.038 in ThickAluminumNaturalLate Small Block Chevy / V6EachBER324-NC- SKU:
- BER324-NC
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- MFG Part #:
- 324-NC
$1.99 -
Bert Flywheel New Chevy HTD 320-NC-EXT
BERT TRANSMISSIONS
$272.99Flywheel New Chevy HTD Flywheel1 PieceHTD PulleySteelBert TransmissionExternal Balance1 Piece SealChevy V8EachBER320-NCEXT- SKU:
- BER320-NCEXT
- Availability:
- Ships Same Business Day
- Weight:
- 4.85 LBS
- MFG Part #:
- 320-NC-EXT
$272.99 -
Bert Flywheel LS Chevy HTD 320-LS1
BERT TRANSMISSIONS
$209.99Flywheel LS Chevy HTD Flywheel1 PieceHTD PulleySteelBert TransmissionInternal BalanceGM LS-SeriesEachBER320-LS1- SKU:
- BER320-LS1
- Availability:
- Ships Same Business Day
- Weight:
- 4.00 LBS
- MFG Part #:
- 320-LS1
$209.99 -
Bert Flywheel Ext. Balance Chevy 400 HTD 320-400
BERT TRANSMISSIONS
$272.99Flywheel Ext. Balance Chevy 400 HTDFlywheel1 Piece DesignHTD PulleySteelBert TransmissionExternal Balance2 Piece SealSmall Block ChevyEachBER320-400- SKU:
- BER320-400
- Availability:
- Ships Same Business Day
- Weight:
- 4.33 LBS
- MFG Part #:
- 320-400
$272.99 -
Bert Wear Bushing support Ball Spline 44640
BERT TRANSMISSIONS
$54.99Wear Bushing support Ball SplineWear Bushing SupportAluminumNaturalBert Ball Spline TransmissionsEachBER3-20- SKU:
- BER3-20
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- MFG Part #:
- 44275
$54.99 -
Bert Wear Bushing Ball Spline 44639
BERT TRANSMISSIONS
$6.49Wear Bushing Ball Spline Transmission BushingWearPlasticBlackBert Ball Spline TransmissionsEachBER3-19- SKU:
- BER3-19
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- MFG Part #:
- 44274
$6.49 -
Bert Ball Shaft Ball Spline 44638
BERT TRANSMISSIONS
$389.99Ball Shaft Ball Spline Transmission Output ShaftSteelBert Ball Spline TransmissionsEachBER3-18- SKU:
- BER3-18
- Availability:
- Ships Same Business Day
- Weight:
- 2.62 LBS
- MFG Part #:
- 44273
$389.99Qty in Cart: 0Quantity:Price:$389.99Subtotal: -
Bert Stopper Washer Ball Spline 44634
BERT TRANSMISSIONS
$8.99Stopper Washer Ball SplineStopper WasherSteelCadmiumBert Ball Spline Tailshaft housingsEachBER3-14- SKU:
- BER3-14
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- MFG Part #:
- 44269
$8.99
