Southern, the previous owner moved my 3 down to the floor and used some standard 3-speed truck shifter and it had all kinds of problems so I ordered the Hurst Mastershift 3 speed from Summit. It was a bit more expensive, but worth every penny, I haven't had a problem with it at all and the position it sits in is perfect. Make sure you order the 4x4 installation kit with it. Here's the catalog from Hurst
http://mrgasket.com/pdf/hurst2001manual.pdf the Shifter is 366 6901 and the mounting kit is 367 0025, if you search on Summit search for HUU-3666901 and HUU-3670025. Hopefully they have them in stock it took a month or two to get the mounting kit for mine.
Hope that helps,
Jed