Triumph TR6 Overdrive J Type

Keep your Triumph TR6's Laycock J Type overdrive operating smoothly with quality internal components designed for reliable additional ratio operation. Whether you're experiencing slipping engagement, oil leaks or worn clutch components, we stock genuine and aftermarket internal parts, oil seals, bearings, clutch assemblies and hardware for all J Type overdrive-equipped TR6 models from 1969-1976.

J Type Internal Components

TR6 J Type overdrives use hydraulic pressure and cone clutches to engage the additional ratio for relaxed cruising. Internal components wear gradually through use; regular oil changes using the correct specification fluid extend component life significantly. The unit bolts to the gearbox tailshaft, connecting to Triumph TR6 drive shaft assemblies at the rear flange. Proper operation depends on the maintenance of the Triumph TR6 clutch adjustment for smooth gear changes.

Overdrive Rebuilding and Maintenance

Slipping overdrive indicates worn cone clutches requiring replacement. Professional rebuilding ensures correct clearances and long service life.

Planning overdrive work? Consider checking the Triumph TR6 cooling system condition during extended maintenance visits.