Transmission repair, Final Drive Repair, and Driveline Services

Gearbox repairs and restoration
We also perform TIG welding repairs to cast cases.  

Transmission Restoration / Repair Services.  
  • Disassembly
  • Parts are measured, photographed for evaluation and to determine if parts should be replaced or reused. Parts that often wear are bushings, shafts (splines), gears (pitting and chipping on hardened surfaces, etc.)
  • Water (rust) damage
  • New Bearings, Viton seals and Gaskets
  • We do not bend forks. If shift forks are out of adjustment, I recommend upgrading to /5 eccentric fork adjusters
  • Shaft spacing and shimming
  • Option to bead blast/clean cases.  After disassembly, the cases are emptied of shafts and gears and sealed with spun aluminum plugs (to prevent contamination of internals with media); blasted with clean beads and then thoroughly cleaned with soap and water. 
  • Once the cases are cleaned, they are inspected for any required repairs (such as cracks in the case, burrs in the bearing pockets, etc.)
  • Assembly, metrology (measurement), shimming, bench testing
Final Drive
  • Disassembly, removal of all gears, seals and bearings. Inspection and decision to resuse bearings or renew
  • Removal of center shaft, repair of inside seal surface on ring gear, replacement of inside seal
  • Modification of needle bearings for increased oil flow
  • Application of Hylomar non-hardening sealer on splines and seal collar threads
  • Metrology (measurement), shimming/spacing of ring and pinion for tooth pattern and lash
  • Assembly, proper torque application and sealing of case, bench testing
Drive Shaft - send us your driveshaft and we'll replace the u-joint and/or repair your tapers
  • U-joint renewal
  • Evaluation, renewal or cleanup of tapers on shaft and bell
  • If you do not have the puller to remove the driveshaft from the rear swingarm, just send us the rear swingarm with the driveshaft in it.  
If you prefer an immediate replacement for your transmission, driveshaft or final drive, we can sell you a perfect rebuilt unit off the shelf and make an offer on  your worn or damaged core. Ask us about it!

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