Ok y’all, doing the late 70’s AC bracket swap. Moving along, until I found out the two groove pulley doesn’t fit with the later style configuration. Did the later AC’s just use the single groove pulley? If so, do all slant pulleys interchange?

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What two-groove pulley, later configuration of what, which slant pulleys?

Crank pulley
Water pump/fan pulley
Alternator pulley
A/C compressor pulley
...?

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一期一会
Too many people who were born on third base actually believe they've hit a triple.

The ac cars use a two groove wp pulley, and I made the swap over to the late 70’s AC mounting and didn’t realize , the wp pulley is different . Wanting to know if the single groove’s interchange from year to year? Anyone perhaps has done this swap and can confirm this is what I need. My pulley interferes with the idler.

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