hey fearroza, welcome to the board! make sure you browse through the FAQ, tons of info there! ok i'll try to answer the confusing part, maybe dave can clearify it for you better. you have a feroza, in the states its called a rocky. you also have a rocky, but its more commonly known as the aussie rocky because it is a totally different truck, with a desial engine, solid axles, different gearing, and a different body. specs are also all different, and no they are not interchangeable sadly! the sportrack is the euro name for feroza if i remember correctly. as for wide/narrow track, i believe a 300 is narrow and 310 is wide? or you can simply check by looking at your fender flares. if they are less than 2 inches, then you have a narrow track, if its more than 2 inches, its a wide track! thats off of the front fender flares mind you. you can fit 235/75/15 on the rims no problems, but you would have to lift the truck. how do you asK? check the faq.....

ok seriously, tighten torsion bars, remove sway bar, and you should be ok. but if you want more breathing room, slap on a 2 inch body lift as well.. thats what i suggest anyways. you'll lose major gearing though so theres some tradeoffs. i personally just deal with it. take a look around, and feel free to ask questions.