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Old 02-15-2018, 03:02 PM   #1
barkleydave
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Default F-100 sterring box adjustment

Adjusting cross shaft play on F-100 steering box. It says to disconnect the pitman arm then adjust.


Procedure after that seems the same as on a 2 tooth box.


Can you do it without removing arm?


Thanks
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Old 02-15-2018, 04:22 PM   #2
Dave in MN
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Default Re: F-100 sterring box adjustment

I can't see why you would need to remove the arm. Not having read the procedure, Is it possible they mean to remove the pitman (drag) link from the arm at the ball joint? This would seem to make sense as it would be much easier to feel the movement without the drag of the rest of the steering assembly.

Every video I have watched shows adjustment with the arm still attached to the box. Center the steering wheel half way between extremes (lock to lock) and then in small increments move the pitman shaft adjusting screw in after loosening the lock or stop nut. Snug the lock/stop nut each time you test as just the play in the screw threads will make a difference in how it feels. At the point you feel any resistance in the steering wheel in the centered location, you are too tight, back off just a little.

I just adjusted two F100 boxes in the last two weeks. Great results with a bit a patience.
Good Day!

Last edited by Dave in MN; 02-16-2018 at 09:16 AM.
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Old 02-15-2018, 06:11 PM   #3
Tacoma Bob
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Default Re: F-100 sterring box adjustment

Randy Gross instructed me to remove the drag link and make sure the pitman arm is pointed straight down. Then turn the wheel lock to lock to find center then to proceed as Dave mentions.
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Old 02-15-2018, 07:28 PM   #4
barkleydave
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Default Re: F-100 sterring box adjustment

Thanks that's the way to go Randy knows his stuff
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Old 02-15-2018, 07:44 PM   #5
Nosetime
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Default Re: F-100 sterring box adjustment

Randy and I did that to my box last night...well Randy did while I watched and learned! Highly recommend his services to everyone.
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Old 02-16-2018, 11:38 AM   #6
Mel Gross
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Default Re: F-100 sterring box adjustment

All mechanical steering boxes should be adjusted without any load on them. Unhook the drag link from the Pitman arm and then use the Pitman arm as a lever when doing the adjustment. Now with the drag link unconnected, then find the center of the steering box by turn the steering wheel all the way to one end, count the total revolutions to the other end (use the spokes on the steering wheel as an indicator), and then go back half on that amount. All mechanical boxes must be adjusted while the box (not the car) is at center.
If adjusting a F100 box, end to end is approx 5-1/4 revolutions. Center would be 2-5/8 turns or just a hair past 2-1/2 turns.

If you need additional help, then call me. I will be glad to assist.

Randy Gross
Mel's Model A Parts & Services
714-292-8660
melmodela@aol.com
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