I'm seeing a 5 inch "AC" pulley on my car. Could you see if that's listed in the MPC?
67 390, non-GT, no ac, no TE, single alt pulley
Dearborn car build Feb 67.
Looking at a Feb 68 page from the MPC found a PS pulley identified by a stamped AC
4 7/8" dia
Many applications listed but not a single 390 Mustang one
Only Mustang listing is for 65/ 289 without AC after 8/17/64
Part number C5AZ-3A733-C
Its interesting that the 68 MPC does not show a replacement carried by Ford for that specific application - a 5" pulley is listed as stamped with a 7AA
Lets try to show both references - this might show how confusing and possibly unreliable these sources are for finding the original parts for your car - particularly due to the fact that they only list parts carried in stock (possibly replacing the original parts) and mistakes in the information continue in each
Feb 68 MPC page C5AZ-3A733-C (Part number) -
Marked AC - Application - Mustang 65/ 289 wo/AC from 8/17/64
C5AZ-3A733-F (Part number) -
Marked AF - Application - Mustang 67 390 w/AC
C5AZ-3A733-G (Part number) -
Marked AG - Application - Mustang 67 390 wo/AC w/Thermactor
C7AZ-3A733-A (Part number) -
Marked 7AA - Application - Mustang 65 & 66 289 w/AC from 8/17/64 & Mustang 67 289 wo/dual alternator pulley before 9/12/66
NOTE: The AC marked pulley description shows other 390 applications for that pulley just not noted as for Mustang. Big Ford and Fairlane applications are as follows
67 Big Ford 390 2V wo/AC - Without T/E (Thermactor) dual alternator, super extra cooling or AC
65/ Fairlane and T-Bird 8 cyl. 289, 390) wo/AC
May 75 MPC page C5AZ-3A733-C (Part number) -
Marked AC - Application - Mustang 67 390 wo/AC w/single alternator pulley
C5AZ-3A733-F (Part number) -
Marked AF - Application - shown as being dropped and replaced (for service purposes) by C7AZ-3A733-A listed below
C5AZ-3A733-G (Part number) -
Marked AG - Application - Mustang 67 390 wo/AC w/dual alternator pulley
C7AZ-3A733-A (Part number) -
Marked AA - Application - Mustang 67 390 w/AC
Shows how much "fun" using just books can be and demonstrates how you can get multiple different answers directly and on web sites.