Ah ha! I knew it was in the AIM. It's in Section 10.
KM is 1970 and 71 D/WS4, W66
KN is 1970 and 71 W/WS4, W66
Any other years should be in their respective manuals.
KU and KA are not in this list so must be some other years.
Chad
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1966 Ford F250 Deluxe Camper Special Ranger Custom Paint - San Jose plant
http://www.ford-trucks.com/forums/12...al-ranger.html
1966 Ford F250 4x4 Red/White 4-speed - San Jose plant
1966 Ford F250 4x4 White 4-speed - San Jose plant
http://www.ford-trucks.com/forums/11...-f250-4x4.html
1971 Trans Am White/Blue 4-speed limited options - Norwood plant
http://forums.maxperformanceinc.com/...d.php?t=757496