WXSTP - Weatherstrip (88, 89, 90 Avanti ) - side window uppers Try your local GM dealer and check part No 15522764. WXSTP - '88 convert, J.C. Whitney number 81K9847X. $14.99 plus shipping -------- Weather seals - June 2003 J.C. Whitney, part number 89UD0248R, described as Quarter window seals style W, $6.95 for two seals 18 in long. These appear to be an exact duplicate of the original seals on my '88. Interestingly enough, the package shows the source as the "Soft Seal" company, Ronald Maness"