I've found a S10 rear end on Craigslist for $150.00. I asked the guy what size and what gears it had and he told me the only thing he knew is it came out of a 4.3L 4X4 automatic Blazer. Would that make it an 8.5 rear end? I was thinking I read somewhere that the 4X4's had an 8.5 in them. Would it be the correct width or at least close enough for a 66?