Idler Arm/pitman Arm Help

Chased this question for awhile and finally tracked down a NOS in-the-box '383 only' Pitman. Shown in side-by-side comparison with regular 68/69 A-Body Pitman, it does not hang as low, or extend out as far from steering shaft as regular A-body Pitman. It is small sector.

Arms were 'clocked' identically on a flat surface for the comparison.

I believe the YearOne pitman is large sector.

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