A follow up. On Ford Body Assembly drawing N5-8818-2, in the lower left corner is revision history.
It says:
DATE 1-18-65 SUPERSEDES 7-27-64
EFFECTIVE WITH CZT1-461833 - REMOVED ITEM 2, (C5ZB-63278C14)
HOSE AND ATTACHING STANDARD (Unintelligible on my drawing. It may say CLAMP.)
I thought the drain hose was standard on all 1965 Mustang Fastbacks, but it seems to have been removed in January, 1965, halfway thru production. That also means that no GT Fastback should have the drain hose.
Does anyone have the way to decode "CZT1-461833"? I think "C" is the decade; "Z" is Mustang; the rest is "code".
Jim