Triumph TR6 Overdrive Conversions & Electrics

Upgrade or restore your Triumph TR6's overdrive system with quality electrical components designed for the Laycock unit. Whether you're converting a non-overdrive gearbox, repairing faulty solenoids or replacing worn switches, we stock genuine and aftermarket overdrive solenoids, relays, wiring harnesses and control switches for all TR6 models from 1969-1976.

Overdrive System Technology

TR6 overdrive units use electrical solenoids that engage an additional gear ratio for relaxed motorway cruising. The system connects to Triumph TR6 electrical circuits through dedicated wiring and switches mounted on the gearbox. Overdrive conversions require specific Triumph TR6 propshaft lengths to accommodate the extended gearbox casing. Proper operation depends on healthy Triumph TR6 clutch adjustment for smooth engagement.

Electrical Component Maintenance

Solenoid failures prevent overdrive engagement. Regular fluid changes protect internal components, whilst electrical connections need cleaning periodically.

Planning overdrive work? Consider checking the Triumph TR6 engine mountings during gearbox access.