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New to this forum. On Saturday moved my 78 Vette to get Christmas decorations out of garage. Rolled window down to pull car back in window goes up about an inch and stops. Goes back down without a problem but won't go past the same spot. Motor seems to be OK. Anyone here run into a similiar problem?
Remove the door panels
remove the glass
remove the vertical window tracks
use brake cleaner to remove the old hardened grease in the tracks
Lube the tracks with lithium grease
put it all back together