The 8 1/4 thread

RustyRatRod said
I think you're 100% right. I'll add though that there are MORE than two housings for the 8 1/4, but they vary based on body style and not carrier style. If that made sense.
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Only differences being flange to flange width, and spring perch locations. Correct? The center sections remain the same no matter the body style.