Kelsey Tire in MO is the manufacturer for Goodyear reproductions. There are a few posts on Moparts with vendors other than Kelsey.

1970 & '71 HEMI'Cudas had F60-15 POLYGLAS GTs on all 4 corners (most had their front fenders factory modified for added clearance)

Any other 'Cuda with 15" tires had E60-15s on the front.

The tread width on the F60-15 VS. the E60-15 causes the clearance concern. Many have run F60-15s with STOCK fenders without any issues.