I have a 93 SHO with the power antenna option but it's just about stopped working. Sounds as if a gear and/or the gear drive is "broken?" It only goes up about 1 ft and makes the "gear slipping, etc" sounds as it does. You can pull in up to full extension but it'll fall back down to about that 1 ft level. It that "drive" excessed ONLY with the LH tire & fender "splash guard" off? Thanks