Does anyone know where I can get a pitman arm for a 66 Dart (manual steering)?

Not 100% sure but IIRC the arm you need was used on all A-bodies up to '72 and is the same for manual and power steering.

This page shows I need part # K7020, while 67-72 A bodies used K7074 Does anyone still carry pitman arms for these early A's?

http://www.bigblockdart.com/techpages/moognumbers.shtml

Yes 63-66 A is unique. Your parts house didn't have one? Mine did but it's been a year or 2

5 or so years ago when I rebuilt the front-end, I got mine from PST. I think it was about $100.

I had tried junkyard diving a couple times and found what I thought were solid ones, and they just loosened up after a few miles.

Ended up with the full rebuild kit (Poly Graphite) and bought the pitmann arm separate (Its an extra cost).

http://www.p-s-t.com/c-133-suspension.aspx

Shows $105 here -> http://www.p-s-t.us/00060.htm

Thanks guys.

Lastly, where's a good place to get a idler arm also (k414)?

One on the same page as above for $68.

Full front-end kits are there also.

I like the firm fill of the poly graphite, but after about 3 years, it started squeeking when it was cold. Not many cold days in vegas, so it dont bug me that much.