Thanks all, now time to get marking, measuring, etc. And yes, the rear axle is in the wrong location as well, which will be corrected when I get done.
The full S-10 frame swap requires 2" spacers on the front, vs. my intention on using rack and pinion with a custom cross member will allow me to widen the track to the same as the GM metrics. This way, I keep the stock frame. I did not like the assortment of brackets needed to mount the S-10 frame under the AD truck.
Good news today - found a T-5 from an 84 2.8 S-10. This together with the Camaro T-5 that I located a while ago puts a Hybrid T-5 in the truck - Wahoo.
Further wahoo - may have found the engine for the project.
