15x10 Cragar SST 4.5 Backspacing and N-50s

[mademan]

Ive got an 87 Cutlass, and I came across a great deal on a set of 15x10 Cragar SSTs with Racemaster N-50s, that are practically new. The rims have a 4.5" Backspacing. The car sits pretty high in the back already , but I plan to put some Air shocks in it. I just want ot know before buying the wheels/tires if im going to have and rub issues with the frame, etc.

any help is much appretiated.
heres a pic of my $200.00 POS 😀 its currently got 295/50/15 on 15x10s but i believe they are a 7" backspace

 

[Nozer]

Ive got 15x10's on my bu wagon..fits great, just needed a 1/4 inch spacer because the tire rubbed slightly on the frame when it squatted but i had frame repairs done so it was too built up in that area.
Rear Spacing: 4''
Offset: -32mm
15x10 Cragar smoothie

 

[Nozer]