Roadster gearbox change

[russell49]

Having purchased a roadster a few months ago I am thinking of changing the existing 4 speed gearbox for a 5 speed and have been told that a Sherpa van one will fit. Can anyone confirm that this is the case please.

[dcunn]

Each Marlin car is unique, please advise on which model you have and it's current engine/box combination
- then perhaps your question could more easily be answered