Just replaced the tires on my '09 347 THT, with BF Goodrich Commercial LT 235/85 R 16, E rated. The original Goodyear Marathons ST 235/80 R 16 were still on it- they looked good, but had manufacture dates in mid 2007. Didn't want to take a chance, leaving on a 1000 mile trip this week. I don't expect any problems out of the BF Goodrich's. I keep them inflated properly and keep my highway speeds under 65 mph.