There are more differences than just the climate control and the wheels. The AC compressor on the 01 is only on the VX, making it almost impossible to get one unless you go for a Japan model, which is close to $1K to replace. The 99-00 is about 100 bucks at autozone, pepboys etc...I modded an 01(02, I don't remember) trooper compressor, it works, but still expensive as you can't get that at an autoparts store either. They say they have it, but it is wrong part number. I tried already. So there are some other differences I am sure, since the compressor mounts and fittings and whatnot must be different too. So who knows what other little things are not the same?
Huh, never knew that. Makes me happy to have dumb-lucked my way into a 2000!