Rear Window Tracking Problem
Short answer: Rear windows that fall forward when lowered usually have a worn/broken roller — especially the inner wheel that rides in the slot — plus hardened grease. Replace the bad roller(s), clean off all old grease, re-lube with white lube, and work the glass up and down to spread it.
- The swivel roller (the one with a ball-joint-like stud) and the spring-loaded roller are easy to replace. The third roller’s stem is riveted — grind off the rivet, drill and tap, and reinstall with a thin machine screw.
- The inner/center wheel is the common cause of mistracking (~$10 from a Pontiac dealer parts counter, or roller parts from Rick’s First Generation Camaro, firstgen.com).
- On a 1968 hardtop you can re-lube without pulling the rear panel — just remove the flow-through grille. Otherwise pull the back seat and side panel.
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Content last modified: June 13, 2026 at 10:06 am
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