There are 2 ways to approach this job. One is to grab them with needle nose pliers, but this only works if you have small hands. The other is to remove the driveshaft(s) and transmission crossmember, lower the tranny slowly with a jack and let it lean down to open up the area. I'm about to explain the first method. You can either silicone the original ones, buy new rubber ones, or put freeze plugs in place for a permanent fix. (See Illustration 1-)

1. Get under your truck and locate the shift rail plugs. (See Illustration 1-1 and 1-2)
2. Grab them with needle nose pliers and pull them out.
3. Now coat them with orange silicone (high temp) and let sit for 1 minute. (See Illustration 1-3)
4. Now just push them back in with your hand and viola. (See Illustration 1-1)

Note: I'd let the truck sit for an hour or two before driving it, to let the silicone dry enough.

This is a relatively easy job. Including the picture taking, this only took me about 15 minutes.

Illustration 1-1	Illustration 1-2
Illustration 1-3	Illustration 1-4