i got a 93 f150 4.9l 4x4 5spd and i have 3.08 gears and was wondering if it is hard to take a open differential and convert it to a limited slip? if any1 can can you give me links to get new parts for the conversion. if i cant find any i might just go to junk yard and get the differental assembly and take parts off of their if it would work.