The 6 speed in-line gearbox has been designed to give a precise and positive gear change that provides a feeling of unity between vehicle and driver. Improved fuel economy has been achieved by the range of gears used.
A more positive and shorter gear change with less resistance has been achieved by integrating the gear change mechanism within the main gearbox casing and by fitting metal bushes on sliding parts of the gear change rods (please see image below).

To prevent double engagement each gear change rod, except for the one in operation, is locked in neutral while selecting gears.
A reverse lockout mechanism is used to prevent accidently selecting the reverse gear when selecting 1st gear from the neutral position.
To optimise the gear change on 1st, 2nd, 3rd and 4th a triple synchroniser mechanism is used, this reduces the meshing time and improves gear change operation. This is a compact devise capable of achieving heavy duty meshing. Key components of the triple synchroniser are the synchronizer ring, double cone and inner cone.