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1967 - 1972 F-100 & Larger F-Series Trucks Discuss the Bumpsides Ford Truck

steering box identification

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Old Jul 30, 2007 | 03:26 PM
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steering box identification

Hi All,
I have a 71 F-750 ramp truck that needs a little work on the steering. I am trying to identify what steering box is in the truck so I can either fix it myself or find a shop to do it. There is a number on the side of the box, Hydrapower HF542998. It is power steering.
My father did an engine swap 4 years ago and I'm not sure if he changed the steering to. What other info can I give you. thanks,
Dave
 
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Old Jul 30, 2007 | 06:58 PM
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Originally Posted by Jettruck17
Hi All,
I have a 71 F-750 ramp truck that needs a little work on the steering. I am trying to identify what steering box is in the truck so I can either fix it myself or find a shop to do it. There is a number on the side of the box, Hydrapower HF542998. It is power steering.
My father did an engine swap 4 years ago and I'm not sure if he changed the steering to. What other info can I give you. thanks,
Dave
Please list your VIN (serial) number. There are two different P/S boxes listed.
 

Last edited by NumberDummy; Jul 30, 2007 at 07:04 PM.
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Old Jul 31, 2007 | 06:24 AM
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Here's the VIN: F70EVL 31645,

Other info on the door plate in order if it helps: 25500 182 3800 130 424,

Thanks very much,
Dave
 
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Old Jul 31, 2007 | 06:37 AM
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Originally Posted by Jettruck17
Here's the VIN: F70EVL 31645,

Other info on the door plate in order if it helps: 25500 182 3800 130424,

Thanks very much,
Dave
Welcome to FTE

Could you also list the AXLE code? It will be on the same plate. Your truck was ordered special (DSO = 130424) by the original owner from the NY District Sales Zone. It was assembled in KY. 25,500 lbs is the GVWR. 182 HP @ 3800 RPM. The engine is a 361.


Steering box ID numbers: D0TA-3N503-A or D0TA-3N503-C

Parts catalog sez: the original gearbox is a Ross. It will be marked with either ID number listed above.

 

Last edited by NumberDummy; Jul 31, 2007 at 06:50 AM.
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Old Aug 1, 2007 | 12:58 PM
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Thanks NumberDummy, you steered me in the right direction (no pun intended).
I actually found half of the truck specification sheet and the numbers visible under steering gear were: DOTA-3N, and Ross HF-5. So with that I will assume it's a DOTA-3N503, and HF-542998 which is the number on the steering gear.
Any idea where i can get all the missing info on the spec sheet. Thanks again,
Dave
 
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Old Jul 7, 2010 | 04:53 PM
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Hello Numberdummy

Could you help me identify a steering box? It's tag says SPA CE 78 H 9 0
the side of he main casting says RF-D7TC 3550 - AB

I'm putting it on a 75 250 4x (replacing the power assist set up) and need to get a pitman arm and drag link to fit. Everyone keeps asking me what this PS box came out of.

Thanks - Steven
 
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Old Jul 7, 2010 | 05:27 PM
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Originally Posted by swolh

Could you help me identify a steering box? It's tag says SPA CE 78 H 9 0
the side of he main casting says RF-D7TC 3550 - AB

I'm putting it on a 75 250 4x (replacing the power assist set up) and need to get a pitman arm and drag link to fit. Everyone keeps asking me what this PS box came out of.
SPA-CE = Ford integral PS: 1978 F250 4WD from serial number CE0,001 / 1979 F250 4WD / 1979 F350 4WD.

D8TZ3304B .. Draglink / Obsolete / Fits: 1978/79 F250 4WD & 1979 F350 4WD.
-----------------------------------------------------------------------------
D7TZ3590C .. Pitman Arm / Marked: D7TA-GA / Obsolete

Fits: 1978/79 F150 4WD Super Cab only / 1977 F250 4WD from serial number Y20,001 (not a High Boy) / 1978/79 F250 4WD / 1979 F350 4WD.

The Pitman Arm will work, dunno about the draglink.

I found 39 NOS draglinks at Ford Dealers/obsolete parts vendors, but no one has the Pitman Arm.
 
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Old Jul 7, 2010 | 08:41 PM
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Smile

Thank you very much. That's very helpful. There are aftermarket pitman arms that have 3" drops in them for when you're lifting a 78. Hillbilly deluxe81 has a stock 78 pitman. So I need to measure and see whether a 3 inch drop gets in the way, improves things or is just not necessary.

My 75 is a good ole already lifted a bit highboy, so I'll measure and see if a drop pitman will fit between bottom of frame and top of front end of leaf spring. After I get a pitman arm, I think I can measure what I'll need in a drag link. At least that's my thinking right now.

There's pictures of a real nice looking job by bucks77ford at https://www.ford-trucks.com/forums/8...-steering.html

Thank you again.

Steven
 
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