I need new tires on my rear. I am currently running 27560r15 cooper cobras that I got when I first got the car which are long overdue for replacements. I’m looking to go to a drag radial and stay the same size. I’m not sure my width of my rim or backspacing or any other specs about them other then being 15s. I have about 1/2 inch clearance from the frame. Will drag radials clear and be tucked in the bodywork well? I have no Frame notch and quite saggy old suspension in the back. What wheels would be my best route to get drag radials under the car? Thank you.