Boxed frames and road salt.
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Cargo Master
Joined: Mar 2005
Posts: 2,368
Likes: 620
Boxed frames and road salt.
I go to car washes during the winter with good undercarriage sprays but with the boxed frames we have now I wonder if it will happen increase frame rust from inside out. We don’t have the winter as bad as some but it’s still salty around here. Not really anything you can do about it, just curious what the long term will be. I’ve seen Chevy/gmc’s in pretty bad shape in less than 10 years.
Hotshot
Joined: Oct 2015
Posts: 19,726
Likes: 12,873
From: Wyoming
My '07 Nissan Titan had a boxed frame. No issues after 10 years of ownership. I'm still active on the Titan forum. If there was a major problem I would have heard about it. Has Ford implemented a different coating method on their frame than Nissan did? Beats me.
Posting Guru
Joined: Sep 2009
Posts: 1,739
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From: Virginia beach, VA
Probably will have some long term effect if the salt actually manages to get up in there, but like you said there's nothing you can do about it so why worry...
I recently made the mistake of taking my truck to the beach, cleaned the suspension real good but I can't get the sand off the frame now. It sucks but it was a lesson learned.
I recently made the mistake of taking my truck to the beach, cleaned the suspension real good but I can't get the sand off the frame now. It sucks but it was a lesson learned.
Fleet Mechanic
Joined: Jul 2004
Posts: 1,517
Likes: 198
If the boxed frame is designed right with enough drain holes should last as long as anything else. Personally I like that wax goo that GM dips their frames in. Messy but never dries and is easy to touch up. Sometimes dirt and sand does stick to it but it doesn't hurt anything. Pressure washer turned down low usually cleans it pretty good if you are careful.
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Cargo Master
Joined: Mar 2005
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Likes: 620
we had an 07 extera and the rust was horrible, but to be fair it just and was only driven by my wife on snow days. I could kick myself in the butt for not catching on quicker but I think most of that could have been avoided.
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Cargo Master
Joined: Mar 2005
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If the boxed frame is designed right with enough drain holes should last as long as anything else. Personally I like that wax goo that GM dips their frames in. Messy but never dries and is easy to touch up. Sometimes dirt and sand does stick to it but it doesn't hurt anything. Pressure washer turned down low usually cleans it pretty good if you are careful.
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Thread Starter
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Cargo Master
Joined: Mar 2005
Posts: 2,368
Likes: 620
the exterior of the frame isn't the issue.
Cargo Master
Joined: Feb 2017
Posts: 2,444
Likes: 738
From: Wisconsin
I think he means if you get the kit, you can spray inside the entire frames interior. Thats what I did just for this reason......inside and out.
https://www.ebay.com/itm/FLUID-FILM-...6fa72c08a719f9
https://www.ebay.com/itm/FLUID-FILM-...6fa72c08a719f9
More Turbo
Joined: Feb 2013
Posts: 618
Likes: 69
Honestly, I wouldn't worry too much about it. My 20 year old Landcruiser with 250,000+ miles has spent it's life in Colorado, Ohio, and Virginia where plenty of salt is used on the roads. It has a boxed frame and zero issues so far. Now my 1984 Toyota pickup, that frame looks like swiss cheese and I finally had to take that truck off the road. But Toyota never delivered that frame with any rust protection. Going forward, I'll pick up some Fluid Film for my remaining vehicles (including the F-350 I have on order) this summer and treat the undersides and inside/outside of the frame. That should help ensure I get 20+ of years of good service out of my vehicles.