Roland - all but one of the 'Spirol' pins for the 1450 hydro-transmission assy got lumped together under Part 7 'Self Aligning Ball Bushing', and specifies three 1/4" x 1 3/8" Heavy Coiled Spring Pins.
I checked my local Ace, True-Value, TSC, Lowes, H-D, and other hardware stores and all I can find are Roll (aka Tension) springs. DX3 - I'm wondering if you actually found coiled spring pins (aka Spirol pins).
On the left is a Coiled Spring pin, on the right is a Roll (Tension) pin. Spirol is a brand name for their coiled spring pin, much like Xerox has become synonomous for photocopy.
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