[78w72]

Posted this on your other thread-

Are you concerned with originality or function? Cogged belts are supposed to run cooler, last longer & are a little more efficient which is why most aftermarket belts are made that way today. Maybe Ames or classic etc carries a more correct looking belt?

I have some non cogged V belts saved & in use, for the most part the cogged ones seem to last longer & reduce slippage, the V belts seem to get a shiny glaze on them long before the cogged ones.

if its not an originality issue, a gates or acdelco from rock auto would be a good choice.