- Uses modified original casing (exchange only)
- For fast road use
- Reliable, strong steel gearbox
Racetorations have over 20 years of development in modifying the TR gearbox. Our gearboxes are used worldwide. They are reliable and extremely strong. The top of the range boxes use specially made layshafts hardened to approximately twice the standard depth. The lay gear modifications use high speed bearings that halves the point load on the lay-shaft. The laygear thrust both forward and reverse are converted to a multi- bearing flat roller surface. Synchro rings are competition type hand tolerance’d into each unit. Quick-shaft top covers and co-axial release bearing kits are regularly fitted. The boxes have been used in TR Register championship winning TR4s and TR6s as well as in our 230 BHP Talisman TR6 and many other TRs built to circa 200 BHP+.