Paul tire spreaders are also for puttin a patch in the tire it's self, Like in the tread / or even side wall if small.
I have seen them in some of my 18's that came with my one ton, They are called a BOOT and are a big arse patch and a little thicker regular patch. Needless to say , looks bad, Is a Hail Mary And O-rings can kill you. And the guy at the tire place might too. THAY
DON'T DO IT ANY MORE .
T-ruck
