Muncie Shifter Rebuild?

[Supercar_Kid]

I have a friend who's got a '68 Chevelle Nomad with a factory Muncie bench seat 4 speed shifter. It shifts very sloppy and it could certainly stand to be rebuilt, rebushed, adjusted, etc. I know these shifters didn't give the firm, positive shifts like Hurst units even when they were new, but I've driven other Chevelles with factory Muncie shifters that worked perfectly, so I know it's not the design itself. I think this one would suit him just fine if given a simple rebuild, but he's leaning towards throwing a new Hurst Competition/Plus in it. I just can't stand to see a nice original Muncie shifter being tossed in favor of a modern aftermarket part, so I've offered my help. Anyone know of a reputable place to have one of these original Muncie shifters rebuilt/refurbished? What's it take to get the slop out of an older Muncie shifter? Would new bushings do it, or do you think the box is worn out too? Thanks in advance for your help guys.