I've always though the OC A/T have a real similar look to the Nitto Terra Grapplers. Rowhard has the O/C and I really liked them when I saw them in person in Moab '09.
Both have a rather pronounced "square shoulder", with square-ish shoulder blocks. One tire guy told me last year that Toyo owns Nitto (or vise versa) and that's why they look so similar, basically same tire with a few differences in design....prob BS, not sure.
If you put a tire that says the min rim width is 7.5, on a VX 7" rim, you end up with a more "rounded" shoulder, and a bulgy looking sidewall. That's because it's got to stretch the sidewall all the way back to hold onto the narrower 7" rim.
I don't claim to know if it's doable or a good idea to do what you asked, but I do know it would end up with a very bulgy sidewall, and I personally wouldn't care for that look....because I specifically like the square shoulder look.
ORIGINAL OPEN COUNTRY A/T
NEW OPEN COUNTRY A/T II
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