I have a 1975 SWB Mitsubishi Model J26 "Jeep".
I am looking to change or convert the original 4 speed gearbox (attached to the 2.4 Ltr 4G53 "ASTRON" engine)
to a 5 speed or attach a suitable overdrive.
The little truck runs very well but it revs hard above 55 Mph.
As I use it daily any help would be very much appreciated.