71 2wd power steering
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From: Idaho
71 2wd power steering
I've got a leaky steering box but how do you tell which one it sounds like from other posts that it is one of two types. Are there kits to repair it or is a rebuild the way to go? AND How much for either?
Fleet Owner
Joined: Jun 1999
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From: Creedmoor, North Carolina
There is a seal kit for the Ford Saganaw gear that runs about $10.00. It takes some special/large tools to get in the bottom but once there it's a pretty simple process.
Bill da Dummy can help with part numbers for what years the Bendix gear was used and when it was replaced by the Saganaw gear.
John
Bill da Dummy can help with part numbers for what years the Bendix gear was used and when it was replaced by the Saganaw gear.
John
Ford Parts Specialist
Joined: Nov 2006
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From: Simi Valley, CA
1968/72 F100/350 2WD Power Steering Gear Boxes.
Originally Posted by Bookman
I've got a leaky steering box but how do you tell which one it sounds like from other posts that it is one of two types. Are there kits to repair it or is a rebuild the way to go? AND How much for either?
*1971 F100 2WD's use a Ford power steering gearbox. It's NOT Bendix or Sag-a-Now.
There are two seal kits for this gearbox. Input shaft seal kit and sector shaft seal kit. The same seal kits fit Ford LTD's 1965/79, so they are easy to find.
Ford Part Numbers
D7AZ-3E501-A .. Sector Shaft Seal Kit
F3AZ-3E502-A .. Input Shaft Seal Kit
Note: These part numbers are the current updated part numbers from Ford. Originally the parts carried a C5AZ prefix, that was updated to D3AZ, that was updated to D7AZ, and in the case of the input shaft kit, to F3AZ.
Sag-a-Now (Saginaw) gearboxes used only on Econolines.
* 1969/72 F100/350's 2WD ALL use Ford P/S gearboxes. Some 1968 F100/250's used Bendix gearboxes, some 1968 F100/250's used Ford gearboxes. All 1968 F350's use the Ford gearboxes.
Last edited by NumberDummy; Jul 14, 2007 at 09:40 AM.
Ford Parts Specialist
Joined: Nov 2006
Posts: 88,826
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From: Simi Valley, CA
1971 F100 2WD's use a Ford power steering gearbox.
There are two seal kits for this gearbox. Input shaft seal kit and sector shaft seal kit. The same seal kits fit Ford LTD's 1965/81, 1981/2002 Crown Vics so they are easy to find.
D7AZ-3E501-B .. Sector Shaft Seal Kit / F3AZ-3E502-A .. Input Shaft Seal Kit / Both available from Ford & autoparts stores.
Note: These part numbers are the current updated part numbers from Ford. Originally the parts carried a C5AZ prefix, that was updated to D3AZ, that was updated to D7AZ, and in the case of the input shaft kit, to F3AZ.
There are two seal kits for this gearbox. Input shaft seal kit and sector shaft seal kit. The same seal kits fit Ford LTD's 1965/81, 1981/2002 Crown Vics so they are easy to find.
D7AZ-3E501-B .. Sector Shaft Seal Kit / F3AZ-3E502-A .. Input Shaft Seal Kit / Both available from Ford & autoparts stores.
Note: These part numbers are the current updated part numbers from Ford. Originally the parts carried a C5AZ prefix, that was updated to D3AZ, that was updated to D7AZ, and in the case of the input shaft kit, to F3AZ.
Originally Posted by demarcqa
I have a 1965 F100, I think it has a 1971 power steering box. The box is leaking and I want to know the exact seal kit to buy. C6AR-3580-A2
John clued me in and after doing a little research, he is right. And since then, have typed the following info over 100 times.
Bendix P/S: 1966/68 F100/250 2WD / 1969 F100/250 2WD before serial number D96,001.
> Ford/Saginaw P/S: 1969 F100/250 2WD & F350 from serial number D96,001 / 1970/79 F100/250 2WD & F350 / 1976/79 F100/150 4WD / 1977 F250 4WD from serial number Y20,001 (not a High Boy) / 1978/79 F250 4WD <
C6AR-3580-A2 = ID number for Ford/Saginaw sector shaft cover. Now you have to know where the fluid is leaking from, as there are two seal kits, input & sector shaft.
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I think the leak is coming from the input. It is a complete mess right under the steering coupler. I am currently not driving the truck and while I have it apart I would rather do both seals. So, are these the correct seals for my P/S, D7AZ-3E501-A .. Sector Shaft Seal Kit / F3AZ-3E502-A .. Input Shaft Seal Kit?
Or should I just buy a whole new power steering setup. It looks like you need a special wrench, which is expensive, in order to change the seals. It might be cheaper to just buy a rebuilt one. What one should I buy to swap it out?
Or should I just buy a whole new power steering setup. It looks like you need a special wrench, which is expensive, in order to change the seals. It might be cheaper to just buy a rebuilt one. What one should I buy to swap it out?
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Post Fiend
Joined: Jun 2003
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From: Black Hills of SD
My experience is that they generally leak out the bottom or the pitman shaft. These seals are easy to replace and usually you don't even need to remove the steering box.
Center the steering and remove the pitman arm. now remove the 2 bolts that hold the cover opposite it, that's the one with the slack adjuster bolt. Now you should be able to tap the pitman shaft with a mallet and the shaft and cover will come out. Now from the bottom side, remove the snap ring holding the seal stack in and the seals can be removed. Usually a dowell can be used to tap them out down through the top.
Now the bad news, that seal usually leaks because the pitman shaft bushing is worn. Now the even worse part, there isn't a bushing, they just machined the housing as the pitman shaft bushing.
If it's the steering shaft bushing, good luck first timer, you will end up with about 40 steel ***** that all fall out when you take it apart. I'd say go get a reman box if it's leaking out of the top. $150 is will seem cheap after you attempt to do this job yourself.
Center the steering and remove the pitman arm. now remove the 2 bolts that hold the cover opposite it, that's the one with the slack adjuster bolt. Now you should be able to tap the pitman shaft with a mallet and the shaft and cover will come out. Now from the bottom side, remove the snap ring holding the seal stack in and the seals can be removed. Usually a dowell can be used to tap them out down through the top.
Now the bad news, that seal usually leaks because the pitman shaft bushing is worn. Now the even worse part, there isn't a bushing, they just machined the housing as the pitman shaft bushing.
If it's the steering shaft bushing, good luck first timer, you will end up with about 40 steel ***** that all fall out when you take it apart. I'd say go get a reman box if it's leaking out of the top. $150 is will seem cheap after you attempt to do this job yourself.
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Thank you for the help!! The more I think about the possible headaches from this the more I just want to go buy a rebuilt one. The power steering was not original to this truck. With the numbers provided above, is the one I have from a 1971 f-100? When I start looking for one is that the vehicle I should be using for my search. The P/S fits perfect and I would rather just bolt a new one up and not have to make any changes.
Fleet Owner
Joined: Jun 1999
Posts: 24,552
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From: Creedmoor, North Carolina
I will leaver the deciffering to Mr. Wilson, the Saginaw gear has the fluid lines attaching up on the steering shaft end of the box and can not be swapped with the Bendix without swapping the column also. The total length of the steering column is 2 3/8" different.
John
John
Post Fiend
Joined: Jun 2003
Posts: 8,209
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From: Black Hills of SD
Thank you for the help!! The more I think about the possible headaches from this the more I just want to go buy a rebuilt one. The power steering was not original to this truck. With the numbers provided above, is the one I have from a 1971 f-100? When I start looking for one is that the vehicle I should be using for my search. The P/S fits perfect and I would rather just bolt a new one up and not have to make any changes.
Bill probably gets weary of posting that same info over and over. The Saginaw started mid year, 68 I think, he knows the serial number split and what fits what or you could just go down a few threads to a very similar one where he already posted it.
Ford Parts Specialist
Joined: Nov 2006
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From: Simi Valley, CA
Yes, without knowing which one it's hard to say. But chances are about 999 to one that it's the saginaw and if so any pickup through the 1979 model should pony up the proper unit.
Bill probably gets weary
of posting that same info over and over. The Ford/Saginaw started mid year 1969, from serial number D96,001
Bill probably gets weary
of posting that same info over and over. The Ford/Saginaw started mid year 1969, from serial number D96,001Autoparts store "rebuilts" are nothing more than "resealed" gearboxes. Before too long, fluid will begin leaking from the sector shaft.
The Ford/Saginaw P/S gearbox, besides being used in mid year 1969 and later F100/350's (Rangers/Explorers and etc), was used 1965/2002 in myriad Passenger Cars. Last gasp: 2002 Crown Vic/Mercury Grand Marquis.
This gearbox has a built in flaw
there are no bearings on the sector shaft, it rides directly on the housing. Red Head (redheadsteeringgears.com), located in Seattle WA takes the housing, machines it, installs the needle bearings that FoMoCo left out...on purpose, so they could sell a gazillion sector shaft seal kits.
1965/72: Only a master gearbox seal kit was available (C5AZ-3C538-A). In 1973, Ford replaced it with D3AZ-3E501-A sector shaft & D3AZ-3E502-A input shaft seal kits.
Both these part numbers have since been replaced by D7AZ-3E501-B (replaced D7AZ-3E501-A) & F3AZ-3E502-A
Post Fiend
Joined: Jun 2003
Posts: 8,209
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From: Black Hills of SD
Bill, I swear you hadn't posted when I started typing. Must have been my insomniac ramblings again.
I realize it's been a couple decades or three since I started that learning process. It sure seems like I could drag home anything that was on a 79 and older and not a bendix and they were bolt up swaps. All of the bumpsides I ever owned with power steering had it put on by me. Did 2 of them before anyone even knew what internet was. I must have always just lucked out and got the right pitman arm.
I realize it's been a couple decades or three since I started that learning process. It sure seems like I could drag home anything that was on a 79 and older and not a bendix and they were bolt up swaps. All of the bumpsides I ever owned with power steering had it put on by me. Did 2 of them before anyone even knew what internet was. I must have always just lucked out and got the right pitman arm.
New User
Joined: Feb 2013
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thank you to everyone for all of your help. I contacted red head steering gears today and for $256 they will rebuild mine. That is what I am going to do, I would rather not try to fix it myself only to have it go bad over and over again.
Post Fiend
Joined: Jun 2003
Posts: 8,209
Likes: 12
From: Black Hills of SD
For that kind of money I'd make sure they machine it out for a pitman shaft bearing, or at least a new bushing. I have seen(and used) those lower "rebuild" kits that will tighten the shaft but they do it by replacing one of the seals in the stack with a bushing like spacer which now means you have an effective bushing about 5/16 inch wide instead of the inch and a half it originally was.
I also see the boxes on ebay for around a buck fifty plus the ride.
I also see the boxes on ebay for around a buck fifty plus the ride.