Any difference in M416 and M151 wheels?

[mutt and jeff]

I've been reading a lot lately and somewhat confused, which is par for this course. It seems that there are differences between the Mightly Mite and some M416 wheels requiring spacers, difference lug hole size, etc. And it seems that I thought I read that there was a difference between the 151 and the 416 "standard" trailer, which would not make sense to me as far as the jeep carrying the spare for the trailer.
I've got two wheels with tires mounted that could have come off of anyting and want to make sure I know what these are designed to fit.

I'll hang up and listen.

[rickf]

There was a M416 trailer version made to go with the mighty Mite and that version used the same wheels as the Mite. I believe it was a 416B1 or B2? Other than that the regular 416 used the same wheels as the M151.