yeah, forgot to mention bolt pattern - it probably veries too. the explorer are 4.5x5, the same as jeep wranglers, and w/i 1 inche in width, hence hteir popularity.

did read about the possible need to weld the tubes into the pumpkiin housing though - only held there with 3 'pins' and with some effort (rock crawling, racing, etc) can be rotated to bad ends.