Taken from Mazda new model training manual
- The 6-Speed MT is the P66M-D that has already been used for the predecessor.
Compared to the previous P66M-D however, it has the following new features:
- The cones of the 1st to 4th gear syncronizer rings are partially plated with carbon for
higher durability and smoother shift feel.
- The diameter of the 3rd and 4th synchronizer rings have been enlarged (6mm) for
easier synchronization at high engine speeds.
Any work you do to your car is entirely your own responsibility. If in doubt, you should check technical advice with an independent , qualified person who has seen your car. The MX-5 Owners Club, its officers and forum contributors accept no responsibility for any damage caused to your person or property as a result of you following or not following the advice offered on this forum.roadsterrobbie.co.uk