Hi pnuk ive got 3.0lt manual surf , its the dogs will go anywhere offroad, got 1.5" body lift to get 32" mud tyres on without catchin body work, and 1.5" spring lift, my surf is in garage at mo, with front diff prob' , secondhand one approx £200, if you can find right one (size,ratio etc )which i couldn't so ordered parts coming from Japan £550 plus labour approx £360, but it is a good price for 3.0lt and year , so your choice, personally if like me you're not to mech' minded i'd get an AA inspect' or get a mech' to look it over, hope thats helped also look on Hiluxsurf forum as laser jock said.