rocker panel rustproofing
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Mountain Pass
Joined: Aug 2014
Posts: 158
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From: Venice FL.
rocker panel rustproofing
Pics of cab corner and front,bottom of rocker. Is that factory rustproofing or after the fact? (the holes with black foam coming out)
Whatever it is , seems to be working. 93 reg cab ,no rust
Whatever it is , seems to be working. 93 reg cab ,no rust
New User
Joined: Sep 2015
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The truth is its the complete opposite. Ford shot foam in the fron and rear areas im assuming for sound reduction. What ends up happening is that foam soaks up water, the water sits in those areas, and it rots them out beyond belief. That is why so many cab corners and cab supports are trash on these trucks. Trust me I know because I am replacing all the metal in those areas destroyed by that foam...you can see in the photos of that same area you are referring to.
Lead Driver
Joined: May 2011
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Supercabs are much worse than regular cabs also. And for some reason, it seems that later years suffer worse than older...I've had many a brick nose with solid core supports and cab corners, and I've had a few obs trucks that are spotless everywhere but have rotten core supports and cab corners.
Posting Guru
Joined: Sep 2012
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I think it mostly comes down to how well the truck was taken care. Like pressure washing it every 1-2 weeks during the winter will make a HUGE difference.
My Dad's 89 SCLB rotted out pretty much everywhere except the tailgate, but it was only washed maybe 10 times in 20 years
.
Our 93 was used as a salt truck for the first 4 years of it's life so that cab was shot in no time.
But my 97 was owned by a farmer who ran it hard but kept it clean, so the cab corners and rocker panels are rust free.
My Dad's 89 SCLB rotted out pretty much everywhere except the tailgate, but it was only washed maybe 10 times in 20 years
. Our 93 was used as a salt truck for the first 4 years of it's life so that cab was shot in no time.
But my 97 was owned by a farmer who ran it hard but kept it clean, so the cab corners and rocker panels are rust free.
Lead Driver
Joined: Oct 2003
Posts: 8,476
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From: Madison, WI
The supercabs rust, in part, from the inside out. Major factor is the quarter window. And this may explain why the later ones were worse. The window is a unit construction, glass in frame, with studs built into the frame that fasten through holes in the cab structure. The nuts are only something like 22 INCH-lb. torque. We found the nuts on our '95 to be finger-loose! Hose test showed water coming in, draining down between the cab walls and settling in the cab corner area. We put loctite on the studs and re-torqued the nuts to spec, no more leaks.
It's possible the earlier generations, with the split window, were better fastened and less likely to work loose. Just speculation on my part, though.
It's possible the earlier generations, with the split window, were better fastened and less likely to work loose. Just speculation on my part, though.
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Agnitoood
1994.5 - 1997 7.3L Power Stroke Diesel
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Aug 25, 2010 09:32 PM
