Almost all replacement parts come from the same factory with different names stuck on them . How many aftermarket factories would spend the time and money to produce parts for a limited market like 1967-72 Chevy trucks when they all can buy from 1 manufacture and place whatever name stickers they want on it .No one is buying directly from the manufacture we're all buying from some middle man company .I bought parts today from a tri plus dealer and the stickers said key parts he assured me they all come from the same manufacture .