Just put on a set of firestone 8.20 15 tires on 52 Chevy wheels for the back of my model a coupster. I want the same tread pattern front to rear but I'd have to get a 4.50/4.75 or a 6.00 16" to get a matching tread. The front I'm running early 40s ford 16" steel wheels. I've read some bad things about the 4.50/4.75 and there a tad small but the 6.00s seem like they would be to large. Any other alternatives out there? Anyone running 4.50/4.75 that can shed some light on how good or bad they are?