Looks like we're going to have to sell the Xterra.

We need something bigger for towing, and are looking at getting a late-model GM truck of some sort: 2004 or newer Tahoe/Yukon/Avalanche/Pick-up.
Any chance that 15" rims would fit on any of these? We've got some nearly-new 31x10.50R15 winter tires that we'd like to use on the new truck, if possible.