times 2 on that, although i have a 96 z28 (my first experience with T tops) thats why i traded of my truck a few years ago to build a garage to keep it in.. even tho its only got 112,*** miles, and in excellent cond. they leaked a bit during a heavy rain... my only experience with a sunroof, was when i had a cherry 2000 dakota about 4 years ago, and some dumb A$$ who owned it down the line decided to have a sunroof installed, i was constantly messin with the open/close button tryin to find the "sweet spot" with the least wind noise...sunroofs look stupid, and are worthless on trucks...