I've been told - and I'm not sure - that a Chevy S-10 rear is a direct bolt in to a AD series truck. Also, the 4WD ones have better gearing - also a rumour I heard. Anyway, I have one here (not to sell) and can measure/verify for you if you'd like. They DO make rear disc kits for these.
As far as sequence goes, you work on the end you want to first! Sequence only matters when bleeding brakes!
