Thread: Idler Pulley ID??
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Old 03-20-2025, 01:20 PM
travlnz28 travlnz28 is offline
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My GM parts book says the 3765397 was used on the 63 and 64 409 so I suspect it may have been used with various bracket configurations. I have identified the third from the left as 63 and 64 409.

Appreciate your help Mark.
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