47-55.1 C4 Vette sub frame & running 4 of the same wheel?

[JDarby]

All of you C4 corvette subframe guys attention:

Is it possible to run the same rims on all 4 corners?

I am being told NO and before I lay down the $ I want to make damn sure that is the case.

1955 GMC-100 1st series and I am using Wheel Smith for my step by step wheel measurements. I increased my front cylinders to C5-6 calipers.

running 17" x 7" wide wheel my front will need 1" spacer with a 5.5" Backspace

running 17" x 7 wide wheel my rear will need 1/2" spacer with a 3.5" Backspace

All you FlatOut suspension guys if you have any wisdom you can share with me please do

I am wanting to run smoothies on all 4 with a spare,
Thanks for your advice,
Jeff