Why Tire Rub Now?

I recently purchased the below '72 Swinger. The previous owner had added '71 rally wheels with 245/60R14 BF Goodrich Radial TA rear tires and 205/70R14 fronts

He replaced the suspension with new parts and added a Suregrip rear end.

I've owned it for a month and other than a hot start issue with the Eddy 4 barrel, this car has been a dream come true.

Last night however we were cruising and I made various right turns and three times the right rear tire rubbed on the fender.

They're three turns I've made dozens of times since purchasing and have never had a problem. Why now?

There's about .50 clearance on each fender and like I said have never had a problem before.

I'm worried (I'm a worry wart LOL).

Anything I should have checked or was it just the way it is and I need to be careful?

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