Also, the second picture is of the latches and the question is how do you get the "latch" part (tan plastic) off?
Jim
The following applies to a 66 Hardtop, Oct 65 San Jose build.
One of my standard 66 belts was damaged so I used it as a test mule (I took it apart). My conclusion is that the best bet is to leave repairs and restoration to the "pros". The reasons are that in order to remove the pins, no 1 in the 1st picture, the webbing must be removed (sewing webbing requires a heavy duty machine), and then a special tool inserted in the webbing slot to push out the pins. The pins are held in by a retainer, no 2 in the 1st picture, similar (larger) to the retainers that hold letters and emblems to fenders on 64 thru 66 (and others). The latch lifting part pivots on the pin indicated by no 3 which pulls up the tang holder (my name for whatever it is) and releases the tang half. Picture 2 shows a close-up of the latch frame, pin and retainer, and picture 3 shows where the lifting slot is located (the cracks are optional).
In picture 1, note the wide rectangular slot and wide pivot ends for attaching the belts to the body. The rear belts are identical except for lengths and the bent pivot ends.
Part numbers: ref 1966 Mustang Interior Assembly Manual, pg37; 1966 Mustang Body Assembly Manual, pg 41.
C6ZB-65611A72-CW, front HT and Fastback
C6ZB-76611A72-FW, front convertible
C6ZB-65613B84-AW, all rear
Service part numbers: ref Body Section 610 pg 9 (xxx = color)
C6OZ-62611A72-xxx, front HT and Fastback
C6ZZ-73611A72-xxx, front convertible
C6AZ-62613B84-xxx, all rear to 5/16/66
C6ZZ-65613B84-xxx, all rear from 5/16/66
I don't know what the specific differences are between front convertible belts and HT or Fastback but I assume it is in mounting.
Markings: (a "/" indicated next line down)
Latch, front and rear: reverse side, FOMOCO in an oval / B 5 (ID?) / JR (manufacturer?) / 7-64 date code (month, year)
Mount, front (applies to both ends): W 4 A2 (RH side, note spacing); JR (manufacturer ?, LH side)
Mount, front (applies to plastic shield on tang end): FOMOCO in an oval; W5 JR / THIS BELT MEETS ALL / REQUIREMENTS OF / GSA-JJB-185a-SAE-J4b
Mount, front (applies to plastic shield on latch end): FOMOCO in an oval; W5 JR / THIS BELT MEETS ALL / REQUIREMENTS OF / GSA-JJB-185a-SAE-J4b / DATE 7-64
Mount, rear (applies to both ends): JR (LH side); AB6 (RH side); note - no markings on plastic sheaths.
The sewed in labels are located on the mount ends on the visible side of all belts (but were too dirty to read).
Jim