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1948 - 1956 F1, F100 & Larger F-Series Trucks Discuss the Fat Fendered and Classic Ford Trucks

inner fender driver side

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Old Jan 12, 2008 | 08:06 PM
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inner fender driver side

Both of my trucks have a fist sized hole in the inner fender towards the front, with cracks that shoot out in 3 different directions. There are some bolt holes in that area, but I have no idea what went there. I haven't found it in my manual yet either. Any idea what goes there, and why it corrodes that spot?
 
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Old Jan 12, 2008 | 08:25 PM
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In front of the radiator? Probably where a single horn was mounted. At least that's what ripped mine apart in that area. I don't think there's anything else in front of the radiator.
 
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Old Jan 12, 2008 | 08:29 PM
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Havi,

Does this help?



I suspect the reason that this area rusts out is because it's thin sheet metal and there is a lot of stress on it. That's one of the points that cab flexes the most. The whole body rides on the "dog bone" cab mounts on the back and the radiator in the front. Same reason the inner fender bracket that bolts behind the steering box usually breaks off. The didn't use this bracket on the '51-2s.
 
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Old Jan 12, 2008 | 08:34 PM
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I thought it was just the 52 which didn't have the inner fender mount as all my 51's had the extra mount.
 
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Old Jan 12, 2008 | 08:36 PM
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Is there a duct for the fresh air heater?

On some Ford models, there's an "elephant trunk" routed along the inner apron to bring fresh air to the heater.
 
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Old Jan 12, 2008 | 08:41 PM
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The fresh air heater duct runs completely inside the fenderwell. It mounts on the triangle gasket is the diagram above and mounts on the cab.
 
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Old Jan 12, 2008 | 08:42 PM
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where I inked a green circle.
 
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Old Jan 12, 2008 | 09:08 PM
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That's the area that the fender bracket slides into. As I said, it's a very stressful area and the flimsy sheet metal can't handle it. Most of the ones I have seen are at least cracked, if not rotted out.
 
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Old Jan 12, 2008 | 09:19 PM
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OK, sounds good. Shouldn't be too hard to patch then.
 
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Old Jan 12, 2008 | 09:20 PM
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The lower inner fender-to-frame bracket was discontinued sometime in '51, apparently a running change. (Or maybe some '51's got theirs replaced with the '52 sheet metal somewhere along the way)

Havi's description sounds like the hole is in front of the fender bracket? Is the hole totally caused by corrosion? And only on the driver's side?
 

Last edited by ALBUQ F-1; Jan 12, 2008 at 09:25 PM.
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Old Jan 12, 2008 | 09:23 PM
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Originally Posted by ALBUQ F-1
Havi's description sounds like the hole is in front of the fender bracket? Is the hole totally caused by corrosion?
I don't think so. The cracks are a good 3" long, and the rust is minimal around the open hole. If something was bolted to it, I can see it trapping dirt there, causing a rust-out, but the cracks are what had me confused. Anything weighty bolted there would have to go bye-bye, if it wasn't needed.
 
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