Stickman, if the old idler arm was worn and you put a new one it and it didn't help much, what else could it be?
The ball joints and tie rod ends are most likely worn out. What are the other parts on the front end could wear out?
It takes some time to replace them, but it is well worth it. Otherwise, your new idler arm may wear faster since the other components are worn out. On a 1993 they are probably long gone anyway.

97 T100, 32" BFG/AT, Warn hubs, stock height with Bilstein shocks, Optima battery