will they bolt right in my 87 iroc with a 10 bolt posi with 272 gears or do i need to use the spider gears to any help will be nice thanks

 

yea im also interested in this... i heard that you can just go to a junkyard and gett s10 gears and they will bolt right in basically... is this the posi out of an s10 as well or just the gears?? so if i find an s10 with higher rear end gears like a 3.73 or so i can just swap it right into my 85 Z??

 

gears or carrier from any 7.5 or 7.62 10 bolt would fit in your rear end, provided you have the same and not the 9 bolt rear or dana44