From 1968 (start of production) till 1972 a four speed Moss gearbox was used. A familiar gearbox in the Jaguar MK 11 and early E-types. It only had synchromesh on the top three gears. It was not bolted to the engine itself but effectively mid mounted. It left more leg room than the later Rover four speed and by report the Moss box was tough and precise but needed a refined hand to get the most from it. Later cars became faster, wider and heavier. Some say the Moss box +8 is the purest incarnation. It certainly seems to fetch the most in sale's.
