um.... what's a "smoothie rim" does it have a bolt pattern? what is the bolt pattern on the 8" ford? are they the same? ......... bolt pattern on most 8" is 5x4.5, some were 4 lug. Most early ford wheels are 5x5.5 pattern, so .....no
yup... most 8" rears were 5 studs on a 4.5" bolt circle... not 4.5" between them [myth] ford, merc, lil' lincoln, amc, mopar, vw, volvo ... bunch of car makes used the 4.5" BC... smoothies fit whatever they were drilled to fit...
Some beginners call the 1940 Ford style wheels a "smoothie". Some call the cheapo chrome wheels with no vent slots and the small ridge around the hubcap a "smoothie". What do you mean in your post? A '40 wheel will not fit a 4.5" BC (probably most 8" rearends had a 4.5" BC). There are some of the cheapo chrome wheels that have the 4.5" Ford pattern though.
Thankfully some rodders aren't quite so myopic http://www.jalopyjournal.com/forum/threads/chopped-1932-ford-5-window-coupes.1039697/page-7