Steering Coupling & Pump Leak
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Senior User
Joined: Jan 2010
Posts: 198
Likes: 1
From: Tucson, AZ
Steering Coupling & Pump Leak
My steering box is leaking pretty bad from right under the coupler. I need to change the coupler anyway, so I'm asking once you get the coupler apart the seal in the top of the gear box shouldn't be that bad to replace right?
Ford Parts Specialist
Joined: Nov 2006
Posts: 88,826
Likes: 790
From: Simi Valley, CA
D7AZ-3E501-B (replaced D3AZ-3E501-A & C5AZ-3C538-A) .. Ford integral P/S Sector Shaft Seal Kit / Available from Ford/autoparts stores.
F3AZ-3E502-A (replaced D7AZ-3E501-A, D3AZ-3E501-A & C5AZ-3C538-A) .. Ford integral P/S Input Shaft Seal Kit / Available from Ford/autoparts stores.
Applications: Myriad 1965/2002 FoMoCo vehicles.
-----------------------------------------------
D5TZ-3A525-A .. Steering Coupler Assy / Obsolete
Applications: 1975/76 F100/250 2WD & F350 with P/S / 1976/77 F100/150 4WD with P/S.
WESLEY OBSOLETE PARTS in Liberty KY has 1 = 606-787-5293.
TALLAPOOSA FORD in Alexander City AL has 1 = 256-234-3432.
ARCHIE COCHRANE MOTORS in Billings MT has 1 = 406-656-1100.
MUSTANGS ETC. in Van Nuys CA has 3 = 818-787-7634.
F3AZ-3E502-A (replaced D7AZ-3E501-A, D3AZ-3E501-A & C5AZ-3C538-A) .. Ford integral P/S Input Shaft Seal Kit / Available from Ford/autoparts stores.
Applications: Myriad 1965/2002 FoMoCo vehicles.
-----------------------------------------------
D5TZ-3A525-A .. Steering Coupler Assy / Obsolete
Applications: 1975/76 F100/250 2WD & F350 with P/S / 1976/77 F100/150 4WD with P/S.
WESLEY OBSOLETE PARTS in Liberty KY has 1 = 606-787-5293.
TALLAPOOSA FORD in Alexander City AL has 1 = 256-234-3432.
ARCHIE COCHRANE MOTORS in Billings MT has 1 = 406-656-1100.
MUSTANGS ETC. in Van Nuys CA has 3 = 818-787-7634.
Hotshot
Joined: Apr 2009
Posts: 14,333
Likes: 247
From: Stanley, VA
Changing the seal isn't as simple as it sounds.
First, and most important! You DO NOT want to disassemble the gearbox to replace the seal! If you do, you will regret it very quickly. These boxes can be a royal pain to reassemble correctly.
That being said, yes, you can replace the seal. I don't know if it can be done with the box in place or not. I've always done it with the box out of the truck.
Here's how to replace the seal. The "seal" that you actually see isn't a seal per se. It's a dust boot. To remove this take a sharpened center punch or something similar and pierce the seal and pry it out. This will expose the "C" clip that retains the actual seal. Remove the "C" clip then remove the seal the same way you removed the dust boot. Sometimes a spacer is used, replace it in the same position.
When I install the new seals, I coat the inside lip of the seal with a light coating of grease and I coat the OD of the seal with #2 Permatex non-hardening sealer.
Use a deep socket to install the new seals. Don't forget to install the spacer (if used) and the "C" clip.
First, and most important! You DO NOT want to disassemble the gearbox to replace the seal! If you do, you will regret it very quickly. These boxes can be a royal pain to reassemble correctly.
That being said, yes, you can replace the seal. I don't know if it can be done with the box in place or not. I've always done it with the box out of the truck.
Here's how to replace the seal. The "seal" that you actually see isn't a seal per se. It's a dust boot. To remove this take a sharpened center punch or something similar and pierce the seal and pry it out. This will expose the "C" clip that retains the actual seal. Remove the "C" clip then remove the seal the same way you removed the dust boot. Sometimes a spacer is used, replace it in the same position.
When I install the new seals, I coat the inside lip of the seal with a light coating of grease and I coat the OD of the seal with #2 Permatex non-hardening sealer.
Use a deep socket to install the new seals. Don't forget to install the spacer (if used) and the "C" clip.
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