Hi Mike,
I took a few picture, but very hard to reach a camera on the right angle.
So here is what I have:
<a href="http://s1072.photobucket.com/user/laurentlesage/media/IMG_0480_zpscwlvfmse.jpg.html" target="_blank"><img src="http://i1072.photobucket.com/albums/w364/laurentlesage/IMG_0480_zpscwlvfmse.jpg" border="0" alt=" photo IMG_0480_zpscwlvfmse.jpg"/></a>
<a href="http://s1072.photobucket.com/user/laurentlesage/media/IMG_0483_zpsjg61iwzq.jpg.html" target="_blank"><img src="http://i1072.photobucket.com/albums/w364/laurentlesage/IMG_0483_zpsjg61iwzq.jpg" border="0" alt=" photo IMG_0483_zpsjg61iwzq.jpg"/></a>

I can read: "D2TA-3590-BA"

Any thoughts?

marked D2TA-3590-BA
Arm, steering gear sector shaft
Fits:
73-up F100-250 2WD regular and Super Cab under 8100 GVW w/ power steering
P/N D2TZ-3590-B

HI mike,
Thanks for the infos.
It looks like I have the correct pitman arm, then I don't understand why I have that problem!!!
I even took the steering damper thinking it was pushing too much, but it remain the same without??

Now I am stuck!!!:-X19

Hey everyone, long time not posting anything here!

I finally installed my brake system, I went the Hydro Boost route. I ordered one from
Sweet Performance Engineering Marketing and Design. Matt, the owner, know what he is doing, he sell brand new or rebuild hydro boost. It took 4 weeks to get it done, but the final product is very nice, it come with a threaded rod for the pedal so you can adjust the length for the pedal height, and different threaded rods too. Very easy, bolt on the firewall and same with my original master cylinder.

I went for a spin today, well I made the rear tires to smoke a little bit :-)
BUt I am experiencing some weird thing with the brake pedal!

- First, engine off, if I press the brake pedal and try to start the engine, the engine will have hard time to start!!!? No big deal, I can avoid pressing the pedal before starting.

- Second: when the engine is running, while driving, if I press the brake pedal, the pedal does not come back fast enough, sometimes I have to bring it to normal position with my foot!!!

Also I realize, when I look at the front of the truck that it sit higher on the driver side, I toot measurement at the front fender highest point, and I have 1 inch difference between driver side and passenger side! Everything is stock, I didn't do any modification on the suspension!! Any idea why it will sit lower on passenger side?

And last but not least, I am trying to lower my curb idle, it is around 1200RPM, what should be a normal idle speed/RPM? Does the fact this is a 770CFM? Does it put too much fuel?
Well Sorry I know I am asking a lot of different question, this is where I am now, I also need to adjust the rear drum, and parking brake, anybody know a thread "how to properly adjust your drum brake?"

Thanks in advance for you help guys.