I had been having some problems with my transmission not engaging first or second gear all the time. I'd have to put it in first, then let the clutch out a little until I felt the shifter slide all the way in. After having a local guy take a look, it seems the roll pin on the shift lever was worn.
(photo taken from here: TurboDodge.com)
In the picture above, you can see the completed fix. The process is to
drill out the shaft and the lever to accept a larger roll pin. I started
out with a 3/16 roll pin, but mangled the hole on the shaft and damaged
the roll pin trying to force it in. So I went and bought a 7/32 cobalt
drill bit from Lowes and drilled out a larger hole for a larger roll
pin. That shaft is one hard mother; drilling through the shaft tore the
bit to pieces and it completely shattered just after getting through the
other side. On the plus side, first and second are much easier to
engage, and slide right in.