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Baker GrudgeBox Transmission Twin Cam

Pricing: $3,495.00



Baker GrudgeBox 6 speed transmission for Harley-Davidson® 2007 Later (& 06 Dyna) Twin Cam 6 speed Models 

The BAKER Grudge box has been built to take high horsepower abuse found in late model H-D performance applications while providing elegant shift precision. Backed by a 5 year manufacturer's limited warranty from BAKER Drivetrain.

  • standard shift pattern
  • 3.15 1st gear ratio
  • wrinkle Black billet bearing door
  • Grudge Box comes fully assembled with bearing door, drum, forks, etc. ready to install in your trans case
  • Gears up to 40% wider than stock
  • All gears are straight cut for negligible parasitic power loss, providing maximum power transfer to the rear wheel
  • Wide-ratio gearing for heavier performance applications
  • 250 RPM drop at higher highway speeds (approx. 80 mph)
  • Grudge Box engineering focus on excessive durability
  • Positive dog tooth engagement in gear with pie-shaped shift dogs
  • Frictionless linear detent shift system for smooth shifting
  • Redundant neutral detent to make it easy to find neutral
  • Low effort, single-axis/linear motion ratchet pawl for crisp, tight and easy shifting
  • No case modifications required for installation
  • Power Vision gear ratio tables available from FM to retain cruise control & 6th gear light
    N1 shift pattern & different bearing door options are available. Please call 920-423-3309 for details

Fuel Moto torture tested. We install & use Baker transmissions in-house. Contact us for installation. 

Application List

Fitment for GB6-TC



Shipping Information

  • Item Requires Shipping
  • 60.0 lbs.
  • W14.0000” x H14.0000” x L20.0000”