My 1996 leaks badly on both sides when it rains. We are thinking its the t-tops. Any ideas on how to fix?

Get new weather stripping/water seals for them. I think yearone.com has some.

its actualy cheaper to get them from the chevy dealer. i know i was shocked too. but year one has them too.

turn your blower motor on high close up the car, with soap water spray around the supected area it will bubble up where the seal isnt tight, there maybe an adjustment for it, ask your local body shop