That fits in the same line of thinking of believing that a manufacturer makes the same part under different names to the same spec. Generally that is not the case, but there again, you believe that Smittybilt winches don't suck, so there is that.
You ever look at a Wells TPS for an earlier TJ from the parts store? Same exact part number as Mopar, same exact connector, and in fact every visual detail is exactly the same as the Mopar because Wells makes the Mopar TPS. So why does the Mopar one cost more and the cheaper one from the parts store not respond exactly the same as the one from Mopar? The answer is very simple. When they make the TPS, they test them and the ones that fall within the narrower parameters that Mopar specs out go into the Mopar bin. The ones that land outside of that spec, go into the aftermarket bin so you can pay less for them at Autozone, Pep Boys, etc.. That isn't to say you couldn't get a Mopar equivalent spec if they have a really excellent production run and wind up with excess inventory over and above what Mopar can take.
There is also the critical thought process one can apply to the fact that GM made the Corvette and Chevette in the same year. That doesn't mean they are interchangeable, just that they are both made by GM.
