I put a set of 205 65 15's yokohama avid turing on my 86 500 SE the size that's recomended in the owner's manual, they are 80,000 mile tires $288 out the door at America's tire. I like them much better than the 205 70 14's Michlien Rain Forse tires on my SD ,they are noisey are wearing fast and hard to keep in balance.I learning not to put next size up tires on my MB's as my 81 SD called for 195's I think that size would have been better, I guess the old hot rod days are hard to shake........
William Rogers.....