11 inch tread on 8 inch rim is no good. The tread should be the same or less than the wheel. For stability reasons.
Also, a bigger diameter than 23,5" front tire on a standard Pantera is to large, if a proper ride height is to be used.
Upgrade to bigger wheels makes it easy to find rubber, but the penality will be an even larger dia. A Pantera with more than 4,5" ground setting, measured at the front crossmamber under the radiator, ends up with bad stability. But many of those wheels look nice. And if not the ultimate driveability is your concern, it will be OK to use tehm.
Goran Malmberg.
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