1967 Upper Radiator (2806066) Hose AC vs Non AC

This is an odd one, the 1967 Parts book only list one number for the 273 and it is 2806066.
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In 68 the number changed and there were two different numbers, 2863211 & 2863212.
7-14-4_68.jpg

Out of curiosity I looked at 66 and it had two different numbers.
7-14-4_66.jpg

One might thing it was a mistake in 67 or an unintended omission but my 67 Barracuda broadcast sheet has a 66 code for the upper hose and my car is a non AC car.
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Maybe with the new body in 67 they thought about only having one hose but for some reason in 68 reverted back to two.


Alan