Folks, I'm brand new to your forum, but like what I have read so far. I had a question about seat belts. The weather has finally turned nice down here in Houston, TX, and I want to fix up a few things in Bessie, our 1990 GMC Suburban. On the top of the list is the seat belts. Some of them act as though they wouldn't stop you at all in an accident, and I was wondering if anyone knew of some sort of a test to perform on them. Also, where do you recommend that I purchase replacements? Anyone else have this sort of problem? Thanks so much in advance for all your help!