I've never had a problem with a spool on the street and tire wear. (some) tires will squeal around a slow, sharp turn, some don't. When I put the 4.30's into my Barracuda to replace the SG 4.86's, it will have a spool. Heck, even my '69 CJ-5 is spooled, and I put a few hundred miles on it in...