50's wheel questions

I have a 1950 Plymouth with stock wheels. I was going to order a set of chrome smoothies for it. I took all of the measurements, but then I had a thought. The stock drums are setup for lug "bolts". The smoothies have conical lug nut seats. Is that going to cause a probelm when I try to put the new wheels on?

Also my stock wheels backspacing is 3.5", but the closest wheel I can get has 3.75". 1/4" shouldnt be an issue should it?

 

I remember the 50's Chrysler products having the bolts now that I read this. I'm wondering if you could thread allen head cap screws in through the back of the axle flange like the do with race cars (Strange axles etc.) and use regular nuts. Not sure how that would work on the front though - might be worth checking into.

 

It shouldn't.
I ran Ford wheels with 8" slicks on my 51 Plymouth back in the day.
All it took was hacksawing the single guide pin off the brake drum close as I could.
Look close at the lugbolts and you'll see a lug seat that's either the same as or very close as far a seat angle goes.

No.
The Plymouth has a very roomy rear wheel well.
I checked over my 50 Plymouth coupe and it looked like you could get a 10" slick on an 8" - and maybe 10" wheel in there with no wheelwell modifications.

Ragtops suggestion is a good one, but there may not be room for a bolt head on the inside.
The Dutchman alloy axles on my 31 have long wheel lugs that are grade 8 bolts threaded all the way down and the hex head is very thin.
Something like this may be the way to go, but the bolts could be expensive.
Dunno what the cost cuz they came with the axles.

Keep in mind that there are both left hand and right hand lugbolts and lug studs on this era ChryCo.
If you went to the special lug bolts you would probaby need to get a right hand threaded brake drum.

And along these same lines, later model ChryCo's have all right hand threads.
Not sure what year they started doing that, but my 50 Plymouth coupe had right hand lugbolts both sides on the rear.
I understand some of the later right hand drums etc. fit the earlier cars, but it could also be as easy as using a 50's era right hand thread drum on both sides.