Kit converts the 1968-1980 MGB to a quiet, durable, all synchronized, overdrive 5 speed transmission. The transmission used in this conversion is from a Datsun 280Z. This gearbox was used behind a powerful, fuel injected 2.8 litre engine in the Datsun, and was durable in that service. Yet, it is 23 pounds lighter than the standard MGB 4 speed. It is 0.864 ratio in fifth for quiet, reasonable RPM cruising.
The conversion requires no modification to the MGB chassis, except to the bolt-in rear crossmember. No modifications are required to the engine.