Its hard to diagnose this type of thing without seeing it and putting hands on it but I'll ask a few questions. Is the shift lever "ball and cap" snug in the tower socket? It shouldn't have any up and down movement, just pivot action only. Does the lower tip of the shift lever shows signs of wear? It should be approx the same dimension as the rectangular slots in the shift forks.
The large main shaft with the main gears (the gear set that the forks slide down into) should have very little forward and aft thrust movement. Check that all the forks are tight to their prospective shafts, they are either pinned or with set screw. Remember that 1st gear (granny) always has more throw than the other forward gears. Assembled, with the tranny in neutral the shift lever will of course move side to side freely but with light pressure forward and aft, you should be able to feel the lever tip contact the forks with only about two or three inches of play measured at the shift knob. Run your finger tip in the "slots" of the shift forks. They supposed to be square cut. The lever tip sometimes wears into the thrust sides. Let me know what you find. Need to figure out whats wrong then decide what to do about it. Jeff in Clermont, FL [Non-text portions of this message have been removed] ------------------------------------ Ole Chevy and GMC trucks rule! To unsubscribe, send an email (with no subject, no body, just the email), to: old-chevy-truck-unsubscr...@yahoogroups.comyahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/old-chevy-truck/ <*> Your email settings: Individual Email | Traditional <*> To change settings online go to: http://groups.yahoo.com/group/old-chevy-truck/join (Yahoo! ID required) <*> To change settings via email: mailto:old-chevy-truck-dig...@yahoogroups.com mailto:old-chevy-truck-fullfeatu...@yahoogroups.com <*> To unsubscribe from this group, send an email to: old-chevy-truck-unsubscr...@yahoogroups.com <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/