Outer Limits 4x4 Board

hi all,
im after a gearbox for my feroza, its a 94 cxi but for the past few months its bein maken a nice from the gearbox, i was wondering if anybody could help me out on were to get a cheap gearbox for one, im in melbourne thankx guys ....

Definitely the gearbox (and not the transfer) ? I would check the oil, or drain it and refill (no one ever bloody checks em)

When driving, put your hand on the gearshift, then on the transfer - which is vibrating more?

i drained it and re oiled it, but it is still maken a shit noise like gears rubing or somthing .. thanks mate