Insert the key, align the collar perfectly, mark the collar to the cylinder, and remove the key while holding the parts in alignment.
Apparently, this truck was previously driven by a blind epileptic drunk.
New
lock cylinder set ~$70~100 (3): with black keys (2), black ignition cylinder, stainless door cylinders (2)
Ford (1L3Z-11582-A) improved lock cylinder kit
MotorCraft SW-6383 ~$60 (not the A/C clutch pressure switch with the same number)
.
StratTec is the OEM for the Ford kit, and its number is
707624 for about half the price. The blank key is
597638 for ~$2.50~6 each.