Front suspension fitting
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Joined: Aug 2006
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From: Tukwila, WA
Front suspension fitting
2002 F350 4x4, what is this fitting for (see red arrow)? It is located on the top, front of the steering knuckle and has a rubber cover, which I've removed for the picture.
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From: Gilbert
Is that the fitting for the ESOF vacuum line (to engage/disengage the hubs)?
Do your hubs work when you flip the switch in the cab (if equipped)? If not, that's probably why. It's common when the hubs stop working to just cap off the lines and work the hubs manually, switching between auto/lock when needed.
Do your hubs work when you flip the switch in the cab (if equipped)? If not, that's probably why. It's common when the hubs stop working to just cap off the lines and work the hubs manually, switching between auto/lock when needed.
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From: Tukwila, WA
Yes, that's possible. It doesn't look like its ever been used.
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From: South Jersey
its the esof vacuum line fitting, it doesnt matter if you have it or not ALL Fords have the nipple in the knuckle. If it were me id remove the nipple and install a stainless 1/4" plug. My dads 2000 rubber cap rotted off and for years water/salt/ etc got into the nipple and rusted up everything really good.
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My Ford (2000 4x4) didn't come with any such nipple on the knuckle.
I just went out and triple checked to make sure, and had an Excursion with ESOF to compare it to side by side, so I would know exactly where to look.
No nipple. MSOF. (Manual Shift on Floor).
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From: Pea Ridge, AR
Um, apparantly not "ALL Fords."
My Ford (2000 4x4) didn't come with any such nipple on the knuckle.
I just went out and triple checked to make sure, and had an Excursion with ESOF to compare it to side by side, so I would know exactly where to look.
No nipple. MSOF. (Manual Shift on Floor).
My Ford (2000 4x4) didn't come with any such nipple on the knuckle.
I just went out and triple checked to make sure, and had an Excursion with ESOF to compare it to side by side, so I would know exactly where to look.
No nipple. MSOF. (Manual Shift on Floor).
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Hmmm. that is kind of surprising that there would be a difference. I would expect them to be the same?
Maybe the 550 front axles are different? I didn't think they were, other than the wheel hubs and the brake rotors. Maybe the absence of the fitting is another difference?
Back in 2000, ESOF was not even an option on the F-550 (nor F-450 chassis cab). ALL F-550's were manual transfer case only... even the Lariats (mine is a Lariat).
Maybe the 550 front axles are different? I didn't think they were, other than the wheel hubs and the brake rotors. Maybe the absence of the fitting is another difference?
Back in 2000, ESOF was not even an option on the F-550 (nor F-450 chassis cab). ALL F-550's were manual transfer case only... even the Lariats (mine is a Lariat).
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