I called Trenton and explained my problem. They said if I can bring in documentation showing the vehicles weight (UNDER 3,500 lb) then they will readjust it. I found an old 1991 GM Pontiac Brochure the shows the curb weight to be between 3121-3456. Plus my old registration last year for the 1991 Firebird (NO MODEL LISTED) was a weight class 7. If you read TA Dans thread, his 25th Anniversary is listed as a weight class 7
. Seems like IF they can bump you around for the extra $$$$, and you pay it, they are the winner!