The mid 80s S-10 is very common & good. It has .072 o-drive. It has the mechanical speedo. Most 88 & all after theat had the elec. speedo drive & most had the >086 o-drive which is not good with 4.11 rear end. Look on the tag 1352-145 is the best one to use.
Thanks and managed to find a pair of them, 145`s, last week. Also bought a spacer so I don`t have to trim the input shaft or retainer thus allowing an easy replace if I have to swap it out.
