Pitman Arm - PS to Manual

[61hawk]

I've looked through the search results and didn't come up with an answer.

Are there different pitman arms for manual and power steering boxes?

Years ago when I started on my truck I upgraded the steering from the factory manual to power steering. I got as far as mounting the PS steering box. Now I'm looking at going with electric power steering which recommends using the manual steering box. I've got the new manual steering box but can't remember if I need to change the pitman arm. Are the pitman arms different for manual and power steering? I can't seem to find my old one in my box of parts but that doesn't mean anything. This is for a 1965 C10 2WD.

Thanks.