Parabolics in the mail on a 1972 109 SW. Understand it may give a little lift. Is it worth going to a larger size than 235/85/16 or 7.5 X 16 or sticking with that size? Standard 2.25. In addition, any good tires in the US that come in 7.5 x 16? Gave up on trying to get Michelin XZLs and everything else seems to come in 235/85/16.