BFGoodrich makes a LT215x75x15. I bought a 85 Ranger with this size and they worked great off road. When I bought the truck the guy said they had over 40,000 miles on them and they still had good grip. I had 31x10.5x15 on my Kia and they were incredible in Moab. If you want mud tires I don't think you can go wrong with the BFGs unless you like deep gumbo then you need bigger than a 215 anyway.
Dennis

95 Sportage, gone but not forgotten.
98 Jeep TJ, 4" Zone springs with RC Long arms, Ford 8.8", 4.56 gears & Detroit locker rear, D30, 4.56 & Detroit Trutrack front.