Father-Son 1974 Duster Project

I bought this column used and refurbished it.
The gear indicator housing is not the same as on a 74 which has material sloping toward the wheel on each side of the PRND21 letters
I like the column but the plastic indicator for the 74 wont work if inserted from the back of the housing. I held it in place with 2 dabs of silicone temporarily.
Anyone know what this column is out of and where to get the indicator bits so they look right?
I thinks it out of a late 60'2 A-body
ident column.JPG