The Truth About Avanti Sunroofs and Moonroofs: Maintenance and Repair (1971–1985)
Does your Avanti suffer from the dreaded "leaky roof" reputation? While many believe factory sunroofs are destined to leak, specialist Dan Booth reveals the unknown facts behind the American Sunroof and Sky Top systems used from 1971 to 1985. Properly maintained, these units were originally trouble-free—and they can be again.
In this comprehensive guide, Dan explains the engineering differences between the cable-driven American style and the worm-gear Sky Top design. Discover the "secret" to a dry interior: a step-by-step walkthrough for clearing the four hidden drain tubes located in the A-pillars and C-pillars. From identifying hidden rust in unpainted steel housings to the permanent solution of installing an NOS Roof Skin (#1350250), this article is the definitive resource for preserving your Avanti’s interior and structural integrity.