Need measurement from a 1967 Trailing Arm

[Manuel V]

I was told that 1967-1972 Trailing arms are the same as 1966.

Also that long bed and short bed have the same length trailing arms.

I am converting my E Brake Cable System to that of 1966-1972 which I understand to use the same cables.

I want to relocated the bracket on my trailing arms that will receive the cable from the back brake drum.

If someone could give me this measurement from hooking a tape measurer to the back of the trailing arm towards the front of the truck to the rivet/bolt that holds this small bracket to the trailing arm, I would much appreciate it.