You will not have enough room to fit the 2.8 ltr diesel motor in a Feroza as the engine bay is smaller. The Transmission from the Feroza is alot lighter than the Fourtrack as well. Converting a Fourtrack from petrol to diesel requires different front callipers as the power for the disc brakes are supplied from a pump on the back of the alternator as opposed to a vacum booster. also the wiring and fuel tank plumbing is different. Best solution is to look around for a cheap Fourtrak. Plenty of cheap diesel Rockys down under if you look around and I would assume elsewhere. Locking diffs were available but are as scarce as hens teeth.When you find one then let me know thank you.