This overdrive from Rocky Mountain will fit all Land Rover Series I, II, IIA and III, four and six cylinder models, with the exception of those fitted with one-ton transfer cases.  It will also not fit the Stage 1 V8 model.

The Roverdrive SS provides a 28% raise in gearing in any gear. Improves fuel efficiency and significantly reduces noise levels.

The unit which is for sale is new and complete!