Please excuse the dramatic heading! I am a newbie to this forum I confess my addiction to time tested Nissan vehicles, and I don't see much chance of getting over it! I have two Vanette's one 2.4 diesel off road and one 2.3 diesel on road, My quest and question to those of you who know is: getting a higher gear! ie is an add on available? or can I bolt on to my existing engine a Terrano gear box with disabling the 4X etc or is there a gearbox hack? Many thanks for your attention. 

Hi....welcome to the Club

I'm not entirely sure if there is a 'bolt on' to add an extra gear or how you could go about adapting anything to fit.

However, you may be able to play with the gear ratios in the final drive or even the rolling diameter of the wheels/tyres to affect the mph to revs range

Thank you Trevor, much appreciated, I would consider putting bigger wheels on it, but looking at the lump it so much reminds me of the Terrano 2.7 lump, part of me wants to get hold of one to see id it fits! I have gone down that road years ago when younger, But I also recall those small differences which take a week each to conquer! I'm less patient than I used to be and ache quicker!👍