89 Suburban - Squeaky Tailgate Glass

I just replaced the tailgate glass on my 1989 2500 Silverado 'Burban, the last one broke when closing the gate. The new glass squeaks like crazy when in motion, up or down...but it's worse on the way up. I assume that the little runner/guide/track or whatever you call it is worn out. You know...those tracks with the fuzzy stuff on them that the glass slide along vertically? I'd like to replace them but cannot find the correct name or part number for 'em. Any suggestions?

Thanks in advance for your time!

Jeff

Check out http://www.lmctruck.com/icatalog/csb/t1.html they have virtually everything.

Outstanding! Exploded view diagrams and everything...thanks a ton!