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Manual Transmission Rebuild Kits and Components

Manual Transmission Rebuild Kits and Components

Manual Transmission Rebuild Kits and Components

Circle Track Manual Transmission Rebuild Kits & Components at JJ Motorsports

Keep your racing transmission performing at its best with complete rebuild kits and internal components from JJ Motorsports. These high-quality parts restore smooth shifting, eliminate clutch slippage, and ensure maximum power transfer in Falcon, Brinn, and other circle track transmissions for IMCA, USMTS, late models, and modifieds.

Shop trusted brands like Winters for Falcon rebuild kits and clutch packs, and Brinn for Pro 2.0 rebuild kits. Explore related categories such as Circle Track Manual Transmissions & Components for complete units or Circle Track Drivetrain for additional powertrain parts.

Top Circle Track Manual Transmission Rebuild Kits & Components

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
  • Inside Lever              BRI73003

    Brinn Inside Lever 73003

    BRINN TRANSMISSION

    $40.99
    Precise gear selection is non-negotiable in high-performance racing, and the Brinn Inside Lever delivers the direct mechanical advantage your transmission demands. This steel shift lever kit ensures minimal play and maximum control over every gear...
    BRI73003
    SKU:
    BRI73003
    Availability:
    Ships Same Business Day
    Weight:
    0.20 LBS
    MFG Part #:
    73003
    $40.99
    Qty in Cart: 0
    Quantity:
    Price:
    $40.99
    Subtotal:
  • Front Bearing Retainer    BRI72004

    Brinn Front Bearing Retainer 72004

    BRINN TRANSMISSION

    $31.99
    The front bearing retainer is a critical component in your transmission assembly, providing essential support and alignment for smooth gear engagement and extended drivetrain longevity. A quality retainer prevents bearing migration and reduces unwanted...
    BRI72004
    SKU:
    BRI72004
    Availability:
    Ships Same Business Day
    Weight:
    0.52 LBS
    MFG Part #:
    72004
    Qty in Cart: 0
    Quantity:
    Price:
    $31.99
    Subtotal:
  • Pin Clutch Actuator  BRI71030

    Brinn Pin Clutch Actuator 71030

    BRINN TRANSMISSION

    $9.49
    If you're running a Brinn transmission in a high-performance or racing application, this clutch actuator pin is a critical wear item that directly affects shift reliability and clutch engagement consistency. A worn or damaged actuator pin compromises the...
    BRI71030
    SKU:
    BRI71030
    Availability:
    Ships Same Business Day
    Weight:
    0.02 LBS
    MFG Part #:
    71030
    $9.49
    Qty in Cart: 0
    Quantity:
    Price:
    $9.49
    Subtotal:
  • Bleeder Assembly          BRI71027

    Brinn Bleeder Assembly 71027

    BRINN TRANSMISSION

    $13.99
    Proper brake system maintenance requires reliable bleed points to remove air and contaminated fluid from your lines. The Brinn Bleeder Assembly ensures you can access your brake system efficiently without damaging fittings or wasting time on stuck or...
    BRI71027
    SKU:
    BRI71027
    Availability:
    Ships Same Business Day
    Weight:
    0.03 LBS
    MFG Part #:
    71027
    $13.99
    Qty in Cart: 0
    Quantity:
    Price:
    $13.99
    Subtotal:
  • Vent Assembly  BRI71007

    Brinn Vent Assembly 71007

    BRINN TRANSMISSION

    $7.59
    Transmission venting is critical for maintaining consistent hydraulic pressure and preventing seal degradation under extreme operating conditions. A properly functioning vent assembly ensures your transmission can breathe during hard acceleration,...
    BRI71007
    SKU:
    BRI71007
    Availability:
    Ships Same Business Day
    Weight:
    0.03 LBS
    MFG Part #:
    71007
    $7.59
    Qty in Cart: 0
    Quantity:
    Price:
    $7.59
    Subtotal:
  • Clutch Assembly Clip  BRI70046

    Brinn Clutch Assembly Clip 70046

    BRINN TRANSMISSION

    $8.99
    The Brinn Clutch Assembly Clip 70046 is an essential service component for maintaining proper clutch engagement and security in high-performance transmissions. When wear or damage compromises your clutch assembly's integrity, this OEM-specification clip...
    BRI70046
    SKU:
    BRI70046
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    MFG Part #:
    70046
    $8.99
    Qty in Cart: 0
    Quantity:
    Price:
    $8.99
    Subtotal:
  • Rebuild Kit BRI70041

    Brinn Original Transmission Rebuild Kit 70041

    BRINN TRANSMISSION

    $324.99
    Transmission wear is inevitable in high-performance applications, but catastrophic failure doesn't have to be. The Brinn Original Transmission Rebuild Kit 70041 provides all the critical wear items needed to restore your transmission to factory...
    BRI70041
    SKU:
    BRI70041
    Availability:
    Ships Same Business Day
    Weight:
    2.05 LBS
    MFG Part #:
    70041
    $324.99
    Qty in Cart: 0
    Quantity:
    Price:
    $324.99
    Subtotal:
  • Double Row Chain 3/8  BERSG-1076

    Bert Double Row Chain 3/8 SG-1076

    BERT TRANSMISSIONS

    $67.99
    If you're running a Bert Second Gen transmission, a worn or damaged chain will kill your power delivery and leave you stranded on the track or at the strip. The Bert Double Row Chain 3/8 SG-1076 is engineered specifically for your transmission's demands,...
    BERSG-1076
    SKU:
    BERSG-1076
    Availability:
    Ships Same Business Day
    Weight:
    0.64 LBS
    MFG Part #:
    SG-1076
    $67.99
    Qty in Cart: 0
    Quantity:
    Price:
    $67.99
    Subtotal:
  • Breather  BERSG-1068

    Bert Breather SG-1068

    BERT TRANSMISSIONS

    $6.49
    Transmission breathers prevent pressure buildup and moisture accumulation inside your gearbox, which directly extends transmission life and maintains consistent shift quality under sustained racing conditions. The Bert Breather SG-1068 is engineered for...
    BERSG-1068
    SKU:
    BERSG-1068
    Availability:
    Ships Same Business Day
    Weight:
    0.09 LBS
    MFG Part #:
    SG-1068
    $6.49
    Qty in Cart: 0
    Quantity:
    Price:
    $6.49
    Subtotal:
  • Servo Bleeder  BERSG-1065

    Bert Servo Bleeder SG-1065

    BERT TRANSMISSIONS

    $9.99
    Proper servo bleeding is critical for maintaining consistent shift quality and reliability in Bert second-generation transmissions. Air in the servo circuit compromises hydraulic response and can lead to erratic shifts or transmission damage during...
    BERSG-1065
    SKU:
    BERSG-1065
    Availability:
    Ships Same Business Day
    Weight:
    0.25 LBS
    MFG Part #:
    SG-1065
    $9.99
    Qty in Cart: 0
    Quantity:
    Price:
    $9.99
    Subtotal:
  • Detent Ball 5/16in  BERSG-1060

    Bert Detent Ball 5/16in SG-1060

    BERT TRANSMISSIONS

    $1.99
    Detent balls are critical precision components in Bert manual transmissions, ensuring positive gear engagement and preventing unwanted gear slippage during hard acceleration or gear changes. A worn or damaged detent ball compromises shift quality and can...
    BERSG-1060
    SKU:
    BERSG-1060
    Availability:
    Ships Same Business Day
    Weight:
    0.01 LBS
    MFG Part #:
    SG-1060
    $1.99
    Qty in Cart: 0
    Quantity:
    Price:
    $1.99
    Subtotal:
  • Bearing Carrier Thrust Support Bearing BERSG-1032-K

    Bert Bearing Carrier Thrust Support Bearing SG-1032-K

    BERT TRANSMISSIONS

    $76.99
    If you're running a Bert second-generation transmission in a high-performance application, the thrust support bearing is a critical component that directly impacts power delivery and transmission longevity. A worn or failing carrier support bearing can...
    BERSG-1032-K
    SKU:
    BERSG-1032-K
    Availability:
    Ships Same Business Day
    Weight:
    0.08 LBS
    MFG Part #:
    SG-1032-K
    $76.99
    Qty in Cart: 0
    Quantity:
    Price:
    $76.99
    Subtotal:
  • Guide Screw Shifting Rod  BERSG-1022

    Bert Guide Screw Shifting Rod SG-1022

    BERT TRANSMISSIONS

    $11.99
    Precision shifter operation depends on the quality of your guide screw assembly—a poorly maintained or worn rod directly impacts shift accuracy and consistency under race conditions. The Bert Guide Screw Shifting Rod SG-1022 is engineered to maintain...
    BERSG-1022
    SKU:
    BERSG-1022
    Availability:
    Ships Same Business Day
    Weight:
    0.05 LBS
    MFG Part #:
    SG-1022
    $11.99
    Qty in Cart: 0
    Quantity:
    Price:
    $11.99
    Subtotal:
  • Carrier Support  BERSG-1011

    Bert Carrier Support SG-1011

    BERT TRANSMISSIONS

    $1.49
    The Bert Carrier Support SG-1011 is an essential component for maintaining proper differential carrier alignment in your Bert Second Gen transmission. This OEM-spec support ensures consistent gear meshing and eliminates unwanted carrier deflection under...
    BERSG-1011
    SKU:
    BERSG-1011
    Availability:
    Ships Same Business Day
    Weight:
    0.09 LBS
    MFG Part #:
    SG-1011
    $1.49
    Qty in Cart: 0
    Quantity:
    Price:
    $1.49
    Subtotal:
  • Overhaul Kit LM Trans.  BER91

    Bert Overhaul Kit LM Trans. 91

    BERT TRANSMISSIONS

    $149.99
    If you're running a Bert Late Model transmission at the track or in competition, keeping critical wear components fresh is essential to maintaining consistent shift quality and reliability between rebuilds. This overhaul kit supplies the core seals,...
    BER91
    SKU:
    BER91
    Availability:
    Ships Same Business Day
    Weight:
    0.69 LBS
    MFG Part #:
    91
    $149.99
    Qty in Cart: 0
    Quantity:
    Price:
    $149.99
    Subtotal:
  • Ball Spline Tail Housing Overhaul Kit BER3-BS-OK-N

    Bert Ball Spline Tail Housing Overhaul Kit 3-BS-OK-N

    BERT TRANSMISSIONS

    $115.99
    A worn tailshaft housing seal is an overlooked culprit behind fluid leaks and drivetrain inefficiency—this overhaul kit gives you the precision components needed to restore your Bert ball spline housing to factory-tight specifications. Whether you're...
    BER3-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
    Qty in Cart: 0
    Quantity:
    Price:
    $115.99
    Subtotal:
  • Overhaul Kit Ball Spline  BER3-BS-OK

    Bert Overhaul Kit Ball Spline 3-BS-OK

    BERT TRANSMISSIONS

    $90.99
    If you're running a Bert ball spline tailshaft housing, regular maintenance is critical to reliable power delivery on the track. This overhaul kit provides all the internal components needed to restore your housing to factory specifications without...
    BER3-BS-OK
    SKU:
    BER3-BS-OK
    Availability:
    Ships Same Business Day
    Weight:
    0.49 LBS
    MFG Part #:
    3-BS-OK
    $90.99
    Qty in Cart: 0
    Quantity:
    Price:
    $90.99
    Subtotal:
  • Stopper Washer  Ball Spline BER3-14

    Bert Stopper Washer Ball Spline 44634

    BERT TRANSMISSIONS

    $9.49
    If 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 failure in your drivetrain can cost you a race or...
    BER3-14
    SKU:
    BER3-14
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    MFG Part #:
    44269
    $9.49
    Qty in Cart: 0
    Quantity:
    Price:
    $9.49
    Subtotal:
  • Grease Fitting            BER310

    Bert Grease Fitting 310

    BERT TRANSMISSIONS

    $4.49
    Proper 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 straight-threaded fitting is engineered for direct...
    BER310
    SKU:
    BER310
    Availability:
    Ships Same Business Day
    Weight:
    0.02 LBS
    MFG Part #:
    310
    $4.49
    Qty in Cart: 0
    Quantity:
    Price:
    $4.49
    Subtotal:
  • Output Shaft Tube  BER3-01

    Bert Output Shaft Tube 44621

    BERT TRANSMISSIONS

    $368.99
    If you're running a high-performance transmission setup, the integrity of your output shaft housing is non-negotiable. This Bert Output Shaft Tube delivers the structural rigidity and durability required for demanding racing applications and heavy-duty...
    BER3-01
    SKU:
    BER3-01
    Availability:
    Ships Same Business Day
    Weight:
    3.44 LBS
    MFG Part #:
    44256
    $368.99
    Qty in Cart: 0
    Quantity:
    Price:
    $368.99
    Subtotal:
  • Total: items /

Adding your products to cart

Big Power, Nice Sound!

Picked up a Pro Circuit pipe and silencer for my YZ125 it’s a game changer. The power feels way better and the sound is awesome.

Tyler D. - 06/12

Perfect Fit

First time ordering here and dang y’all knocked it outta the park! The wheels fit my Ranger UTV perfect, and I’ll definitely be back for more 5 stars all day!

Sarah L. - 08/24

Fast Shipping!!

Ordered on a Monday, and it was on my doorstep by Wednesday! Super impressed with how fast the shipping was.

Jason P. - 09/13

Helps keep cool, works great!

Bought the dual pass Allstar radiator for my build, and it’s been solid. Keeps the engine running cool even on the hottest days no complaints here!

Jake M. - 05/21

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