Kona,
About a year ago, I had alot of play in my shifter as well: by play i mean that when it was in gear, the shifter could be moved side to side about 1"... you need to figure out if the slop is coming from the front or the rear of the rods...
get underneath the car, and look at the rods that go from the transmission to a "black box" located directly underneath the shifter... by "shaking" the rods, you should be able to tell if the slop is at the pin joint at the transmission end, or in the "black box" underneath the shifter...
if the slop is at the pin joint, i believe the pin can be ground out and replaced with a run of the mill bolt (use the search function, as sdpatt posted a detailed procedure to do this)... if the slop is in the black box, there are two wear items in there that you can buy from
www.shonutperformance.com i believe they're under the "performance" section, called "rod shifter ball AND socket bushing"... not difficult to replace... (that's where my slop was coming from, but not no mo' thumbs_u )
hope this helps...
edit: i just realized that you've got a '91, so i'm not certain that your setup will be the same as mine... can somebody else confirm this?
<small>[ February 12, 2003, 07:28 AM: Message edited by: ckinart ]</small>