just a hair bit of grinding on front calipers for 15x10 rims on front 3/4 ton.
Are you talking about used tires? H1s are about $110/tire shipped. I never saw any other 37s for less than $250 eachOk so these tires are not desirable, cost almost as much with shipping as my 37x12.50x15 did

There is a company called Treadwright that retreads tires. Before everyone goes nuts, I have not tried them but I did search some forums and people have been having good luck with them.
They make one tire called the Guard Dog, and it is the old Goodyear MT/R tread design, and they make it in 37X12.15/16.5.
http://www.treadwright.com/p-81-37x12-50r16-5-guard-dog-m-t.aspx
$205 is not bad for 37's

I'm not buying TW's numbers for their retreaded MT's. No way they could add that much tread to make them 1.5" or so taller than factory originals with 75% tread.