Thanks for the info Carolinestruck. I did in fact find that info on my own and while these links offer ALOT ot good information, none of them answered my question. S-10 is listed on some however no mention of 2 or 4 WD is made. As Wrenchbender mentioned they are supposed to be different, I was just looking for the actual measurements. I think my confusion is due largely to the fact that there is so much info out there and I am looking for only one specific piece.
I guess I should mention I want to stay with the 6 lug bolt pattern hence my particular interest in the 4 WD version of the S-10. I have also considered some of the old solid axle imports but they are getting hard to find in the scrap yards.
I have a set of wheels I want to use and am planning on sticking with the 6 lug front (droppped axle from Sid's on the way)whether it be disc or drum. These wheels are of the reverse, deep dish style so I can likely get away with a narrower (slightly) rear if I can find a 6 lugger. Bracketry and mounts are easily changed so I am not too concerned there.
Thanks again for your input though.
Anyone else?!

Chuck