Do you remember if the original spare set flush against the brackets? If the spare did then there shouldn't be any problem with clearance for raising/lowering the spare. What I had planned to do for my spare on my '90 truck was remove the old bracket and cut in half, then bolt/weld on a peice of metal to extend it to fit the 33's, drill new holes and mount it back in place. While measuring under the truck I noticed the space would be perfect for some 2 gal. air tanks. Since I hadn't had any real problems with clearance out on the trail, I went with the air tank idea. However from the measurements at the time the idea I had appears it should have worked. Something similar may work for your Runner if there is enough room under there.