Join Date: Jan 2015
Location: SW Wisconsin
oldeerslayer is offline
Re: Help !! What rear end do i have ? I need to order brake parts
The 5 speed 4x4's were available all years (except real early). It's only the 5 speeds equipped with a 4.3 that got the 8.5 rear and even then it wasn't a sure thing. Usually had to have a towing package or some other indication of possible additional stress. GM was pretty stingy about using the 8.5 and only did it to prevent warranty claims in the heavier duty equipped S10's. Both 2 and 4wd. It was never offered as an available option, so a buyer couldn't order it. Most original buyers didn't know it if they had one. It was when they started showing up in junkyards and guys noticed a few had the 8.5 that this was figured out.
I don't remember seeing any 8.5 in an S10 before 95. So yours is likely 95-97.
That should narrow it down enough to order brake parts, if they are any different than the 7.5. The 8.5 in the S10 has the axle tube diameter reduced down so standard S10 brakes will bolt on to it. Drums are likely the only variant.