Correct steering box

[AR67GTX]

1969 would be the smaller 1-1/8". 1973 was the year the 1-1/4" came out on most B bodies.

how to identify ps steering gear box?

Thanks, I thought it was earlier than that. That’s what I get for owning 66/67 cars only.

 

[ckessel]

Peter will hook you up with all of the needed pieces for the install. As stated by others, you'll need to measure your Pittman shaft diameter between the arm and box so it will match your existing or new arm. Just got one yesterday from him for a 72 Challenger I'm working on for a gut to fix previous screwups from a PO. One of said screwups was installing a Unisteer rack conversion. Very bad decision! Loads of geometry issues making the car hard to drive and control.
bergmanautocraft.com