1953 wheel sizes for 3100 chevy truck

[SD5]

Hi All,

I'm new to all this and just purchased a 1953 Chevy 3100 P/U. I'm in the process of selecting some tires and wheels and need to know what will fit. My plan is to lower the truck 3" with a lowering leaf spring kit. I then wanted to purchase from Coker Tires some Chrome Smootie wheels 16" with Firestone whitewalls 3 1/4". Coker Tires is not sure of the fitment and can not guarantee so I'm asking the experts here...what will work? I have a 6 lug pattern, I need to back spacing measurements, width of the rim and what will all work with dropping it 3".

Your help is greatly appreciated.

Thanks,
Steve