I read somwhere that pre 1995 Del Sols may benefit from installing the post-1995 model seals. Apparently these are larger/redisgned to address this problem of leaks.

I think the seals are about $50.00 a piece in the US. I personally use red rubber grease - a red pure silicon grease which is extremely thick and water resistant, seals and reduces those silly squeaks afforded by the overly flexible chassis.

Warmest Regards