s-10 boxes mount to the inside of the frame rail
or at least is in comparison to the '87 older trucks anyways, in which didnt.
88-up full size i have forgotten
you would have to check pitman shaft splines and diameter, also the length of the box overall to see if the steering shaft would work
i have a '95 full size box and several s-10 boxes sitting around i can check...
because i have forgotten
if you need..
s-10 boxes mount inside the frame rail
the 87 older trucks mounted on the outside
so didnt interchange at all.
i think maybe they did move the '88-up full size boxes to inside the rail though
thats the thing i forgot..
even if they did it doesnt mean it will fit and work.
the only thing that interchanged before 88 was ones that were mounted on the same side of the frame rail
s-10 and cars were same
and only full size ones interchanged with each other
im not too sure manual steering was even available on 88-up
never seen or heard of one anyways.
if there are any i think they are super rare
or special order
why dont you just fix whats wrong and do it right?
steering is a safety issue..
not for only you and who you haul around but others out on the roads..
good used parts are dirt cheap at yards.
good luck