jim,
our 77-79 fords run the "standard" Ford 5 on 4 1/2" bolt pattern, which is common to not only cars that are in our series, but also many other fords, such as 60's vheicles, later vheicles (like a 85 Lincoln or a 92 crown vic) and also rangers and explorers (I saw a poorly maintained bird like ours on Ranger "spin" aluminum wheels at work yesterday... Yuck) anyway, Ford decided in the early 70's that it would be a good idea to make the BIG cars have a bigger bolt pattern, 5 on 5". your 73 bird has this, as did lincolns of the same era. while I don't know what the bolt pattern is for every ford vheicle, my computer at at the Sears auto store does :wink :wink . so, if you are wondering what some other vheicle has for a bolt pattern, feel free to ask, just drop a line at
[email protected]. I'd be more than happy to help.
Lee