Hi, I need some advice, I want to put a posi rear end on my 86 Chevy Monte Carlo can I use those out of 99 s-10 blazer or what's the best and cheaper way to install a posi rear on this type of car the one from grand national it's out of the question because the're too expensive about 1500 dollars so I would like to know what other options are about this topic thanks for your help