I recently purchased a 96 KJZ78 with 16x7 ET 15 3rd gen 4Runner wheels with some janky Chinese 1 inch spacers. I don't think the spacing is correct. The spare is an original (I think) 4-spoke 15x7 ET -20. I'd like to go to all original 4 spoke wheels, and it seems like the 4 spoke design was produced in several sizes and offsets. Anyone know what my original wheel spec is? Much appreciated.