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12-29-2023, 06:29 PM | #1 |
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32 commercial truck steering box
I picked up a fairly decent 32 big truck steering box . I knew it was from a big truck as it had the 4 spoke steering wheel and a much longer column drop. No problem I thought, just swap those out. It is a RHD box which is what we want. No pitman arm with it. Dang I have 8 or 9 pitman arms and an F1 arm . None are big enough to fit on the splines of the sector shaft. A miserable 0.0984 bigger at the small end of the splines. Does anyone have any knowledge on these steering boxes? Is the ratio different ? The mounting flange is different and i think the hole orientation is different, but thats ok as there are no holes in the frame on the RH side.
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12-29-2023, 07:01 PM | #2 |
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Re: 32 commercial truck steering box
'32 passenger car and commercial vehicle steering sector shaft diameters are the same as are the steering gear boxes. It's the big truck BB steering box assembly that's stand-alone unique.
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12-29-2023, 07:48 PM | #3 |
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Re: 32 commercial truck steering box
Yes this must be a BB box . Seems like 17.1 ratio. Now I need to find a Pitman arm . STD ford pitman is too small by 0.123”. Spline count is the same. It’s a very nice box.
Last edited by my4dv8; 12-29-2023 at 07:49 PM. Reason: Sp |
12-29-2023, 08:05 PM | #4 |
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Re: 32 commercial truck steering box
Fred @ Southside Obsolete should be able to help you. He is @Barnfind08 on here, HAMB and Instagram. Good luck.
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12-29-2023, 09:15 PM | #5 |
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Re: 32 commercial truck steering box
The 1932 BB truck pitman arm is a one year only part (BB-3490-A). There was a change for the 1933-34 BB truck pitman arms (BB-3590-B) and then another for 1935-1937 (51-3590). I'm just pointing this out so that you know there are different versions of the big truck pitman arms for these years. Hope you can source a good 1932 BB pitman arm.
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1935 157" 1 1/2 ton stake truck undergoing full original restoration 1936 131 1/2" panel truck rescue preservation Author of the 1935-1936 Ford Model 51 V8 Truck book published by the Early Ford V8 Club of America |
12-29-2023, 11:24 PM | #6 |
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Re: 32 commercial truck steering box
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12-30-2023, 08:37 AM | #7 |
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Re: 32 commercial truck steering box
Unfortunately I don't know the difference in shape between the 1932 and the 1933-34 styles. Perhaps the difference is the angle or length of the end of the arm? So maybe the later style would fit your '32 steering sector shaft and then you could adjust the angle or length? Sorry I can's be of more help.
Also, are you certain you have a 1932 steering box? Maybe it's a 33-34 version? I don't know how to tell these two steering boxes apart either.
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1935 157" 1 1/2 ton stake truck undergoing full original restoration 1936 131 1/2" panel truck rescue preservation Author of the 1935-1936 Ford Model 51 V8 Truck book published by the Early Ford V8 Club of America |
12-30-2023, 12:18 PM | #8 |
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Re: 32 commercial truck steering box
I *think* the steering columns themselves are the same between 32-34 BB truck. David G is certainly more knowledgeable thna myself on that.
I believe the main difference between the pitman arms is where the arm is angled. I know Chris (sugarmaker) posted a side by side comparison of '32 and '34 pitmans arms. Red |
12-30-2023, 01:13 PM | #9 |
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Re: 32 commercial truck steering box
Red,
Your right, it's the Pitman arm that differ as Chris shared with us in his thread. |
12-30-2023, 07:35 PM | #10 |
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Re: 32 commercial truck steering box
my4dv8,
This is what i found. The 32 BB pitman arm is close to you in the picture, more rusty. Regards, Chris and Cheryl
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12-30-2023, 07:52 PM | #11 |
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Re: 32 commercial truck steering box
The unfortunate aspect of both those Pitman arms is that the ball is a parts of the arm, unlike the '32 passenger and commercialal arms which have replaceable ball studs.
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12-30-2023, 08:20 PM | #12 |
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Re: 32 commercial truck steering box
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12-30-2023, 09:20 PM | #13 |
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Re: 32 commercial truck steering box
Pete, Thanks once again.
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12-31-2023, 10:42 PM | #14 |
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Re: 32 commercial truck steering box
This is why they invented the oxy-atcetylene torch
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01-01-2024, 02:01 AM | #15 |
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Re: 32 commercial truck steering box
I assume these are longer than a passenger arm. I am sure if the fixed ball is worn ,with some care it could be built up, or it appears that the is enough metal to make a 7degree tapered hole for a bolt in ball?
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