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Old 09-24-2011, 12:21 AM   #1
Ackattack
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Pitman arm question

I got a new power steering gear box and pitman arm for my 69 (no-buck). It has 73+ upper and lower control arms on it. I got the whole front suspension from a donor 72 suburban that obviously had been swapped in there as well. So I don't know what is what. The partnumber that I removed is 6272424.

So tonight I got to put in my new pitman arm and gearbox. Well come to find out the pitman arm that I installed (ordered it for a 73 C-10) is shorter than the one I removed. The partnumber that I removed is 6272424.

Now, when I steer all the way to the left, the spindle doesn't quite hit the stop. Turning right it does. Looking around at stuff it looks like the tie rods could be adjusted so that the left spindle would hit the stop, but I didn't want to mess up my alignment. But having the shorter pitman arm, is it already messed up?

Should I install a 72 pitman arm, or just stay with the 73? What do y'all think?
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Old 09-24-2011, 10:11 AM   #2
turp mcspray
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Re: Pitman arm question

The shorter arm will just make the ratio faster.
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Old 09-24-2011, 05:37 PM   #3
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Re: Pitman arm question

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Originally Posted by turp mcspray View Post
The shorter arm will just make the ratio faster.
That is backwards. The shorter arm decreases the travel distance and will make the ratio slower. You need the longer pitman for a 72. It should resolve your problem.
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Old 09-25-2011, 07:39 PM   #4
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Re: Pitman arm question

well I bit the bullet and got another new pitman arm for a 72. Looks like it will work fine and I'm back in business.
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Old 01-22-2012, 11:05 PM   #5
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Re: Pitman arm question

So the 72 pitman arm is longer than the 73 and yet the 72 arm fits the 73 box?
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Old 03-22-2012, 01:23 AM   #6
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Re: Pitman arm question

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Originally Posted by LostMy65 View Post
So the 72 pitman arm is longer than the 73 and yet the 72 arm fits the 73 box?
Anyone?
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Old 03-22-2012, 11:13 AM   #7
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Re: Pitman arm question

That appears to be true. I bought a 72 pitman and it fits the 80's steering box I bought and mounted on the 72 frame with the 72 tie rods/etc. ( I bought the 80's box for the metric fittings for the 5.3 I installed.)

Whether the 73 pitman is shorter I can not comment.
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Old 04-24-2012, 07:27 AM   #8
LostMy65
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Re: Pitman arm question

It would be nice to confirm if the 72 pitman arm is longer. Longer pitman arm equals better turning radius.
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Old 09-05-2015, 12:49 PM   #9
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Re: Pitman arm question

Has anyone ever confirmed if the 72 pitman arm is longer?
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