The front two rims on my 1955 Plymouth are off from a 1950 Plymouth I found
in the junkyard years ago. They do have a locating hole, I think there is
only one on those rims, so they only go on one way. I believe all my rims
are 15" x 4.5", but have not measured them lately as they are on the car..
The car had 6.70 x 15" tires on it when I bought it and my parts book says those
tires go with the 15" x 4.5" rims. My car is a factory V8 car with the 241
so it should have the 11" front brakes. But again, have not
measured anything lately.
My parts book says the 15" x 5" wheel is for the 11" brake. The
rims from the 1950 Plymouth, which was obviously a 6 cylinder, fit fine on my
car. If you need more info, let me know, and I can look into it
further.
John,