Questions for an GM A-body Masters

[esporgi]

Hi guys !

As I said in my presentation, I have questions about Chevelle

First, could 17*11 with a backspacing of 4.5 will fit under a 1971 Chevelle ? If it don't, what modifications I have to do for put wheels like this ?

second, could an Chevelle rear axle be cut of 2.5 inch on each side of it ?

thank you !