Buick finned Aluminum brakes

What up fellas and ladies...I need a measurement...I'm thinking of running buick 45 finned on my project but it's not an open fender car..my truck will have front fenders so what is the distance from center tire to center tire...the wider the better...oh I almost forgot w/ mid 30 ford wire wheels...please any info would be great!!!!
aaron

 

I think the width of your axle will play a major role in figuring how wide this set up will be.

 

good point......let me know yer running as far as tub or I-beam and it's width...