If the unit is a Triumph unit, you do not need them. Available from Moss Europe last time I looked. Speedo Gear set - If your OD is a Volvo unit. Volvo used a slightly different mounting system, so you may need to drill a couple holes and tap them to accept the mounting studs. Later Volvos used an electronic speedo and will not work with a TR6 speedo. BE CERTAIN you get one that has the provision for a MECHANICAL speedometer. Laycock J-Type overdrive - As found on Volvo or Triumph - Ebay has them used starting at $100, Quantum Mechanics has them rebuilt (for a lot more. If you want to tackle this on your own (as I did) then. This is expensive, but simplest for a shade tree mechanic. You can get used and rebuilt OD gearboxes on eBay, or rebuilt from John at Quantum Mechanics. Apr 06 FLCentral Florida All British C.Dec 10 VARichmond Triumph Register Hol.
