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Ford Tractors Discussion Forum
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1959 Ford 641 Power Steering Box

Author  [Modern View]

04-05-2014 05:56:19

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I am working on adding Power Steering to my 641. I have obtained a used steering column that I am reworking before I install. Only want to remove the tin one time so want to insure seal and o-rings are good before installing. I have never been in a ford tractor steering box before and know many of you have done several so asking for some help. Sure this will not be my last post on the project. The box look normal without a lot of grease/oil on it but know the right thing to do is at least seals and o-rings. I am going by the Ford Dealer next week and am working on a list or parts today. Please review and let me know what I am missing. Know that once I get in there will need to look at bearing as well. Are there some the bearings that need replaced regardless?

1 Seal
4 O ring
5 Oil seal
6 Bearing lock nut
10 O ring
12 Oil seal
16 Gasket
18 Dust seal 2 each
20 Packing 2
24 O ring 2

27 Expansion plug… what is this, where does it go. On my box if you turn it upside down you can see a small round hole at the bottom of the steering shaft. Is this a cap for that?

Are bushings/bearing like 2 21 23 press fit?

And is the only place to buy these box parts at Ford/New Holland?

Any other advice before I start?

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jeff pk

04-05-2014 18:44:24

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 Re: 1959 Ford 641 Power Steering Box in reply to sstra, 04-05-2014 05:56:19  
This might help---From Ultradog MN

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04-05-2014 10:22:15

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 Re: 1959 Ford 641 Power Steering Box in reply to sstra, 04-05-2014 05:56:19  
UD is one of the resident experts on ps boxes, hunt him down if he doesn't see this post. He's helped many with those boxes.

I'm a manual steering box guy.. never been into the valve pack on one of them..

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04-05-2014 20:43:47

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 Re: 1959 Ford 641 Power Steering Box in reply to soundguy, 04-05-2014 10:22:15  
So soundguy what would you replace down in the steering box?

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04-07-2014 06:06:39

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 Re: 1959 Ford 641 Power Steering Box in reply to sstra, 04-05-2014 20:43:47  
on a regular box i'd do bushings and seals and thrust bearings. i know the thrust stup on the power box is a bit different in that the wormshaft has to actually have a lil thrust motion to activate the valve components. so.. as said. I'm not versed to give advice on the PS box R&R

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04-05-2014 17:42:20

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 Re: 1959 Ford 641 Power Steering Box in reply to soundguy, 04-05-2014 10:22:15  
Quoting Removed, click Modern View to see

Get prepared for sticker shock on the bearing lock nut. I just completed the same project and priced the nut at $39. I was able to reuse the old one.

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