The 250’s were built from 1969 to 1983, used in Fairlane’s, Monarchs, Falcons, Comets, Mavericks, Granadas, Torino’s, and maybe a few others I am forgetting. The 250’s all came with a front sump type oil pan so you will need to do some mods to make it into a rear sump pan and also mod the oil pump pick up tube to be able to fit it into a Bronco. Best of luck