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Old 01-11-2013, 10:44 AM
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using foam for repairs ????

'02 chebby truck and its got the usual cab corners that are shot.
the replacements are about 130 ea. so that ain't gonna happen. its my daily driver work tk.. saw somewhere bout using hi expanding foam from lowes/home depot.. foam it, and smooth it out and i guess use bondo to smooth it all out for paint..
any suggestions or advise on doing this...tks
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Old 01-11-2013, 11:47 AM
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In the words of Barry "it's your choice how you do things" but if it were mine I would do one of the following. Buy the replacement panels, make a replacement panel, or check with local salvage yards for a possible replacement piece. As for the foam I will try to post a picture of how that works out. It will only fill the hole you have now and will fall out in a few weeks/ months because the rust will continue to grow and get worse.
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Old 01-11-2013, 11:48 AM
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here's a thread that might help...
How to handle this (pictures inside)
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Old 01-11-2013, 12:00 PM
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You might also want check around on the internet, LMC has cab corners listed for $39.95-59.95 depending on which cab you have. May be able to find someone that has them cheaper than that, but I have always had good luck with the LMC parts I have used on the mid 90's Chevy trucks. There are several listed on Ebay for $28 and up again depending on which cab you have. Good luck either way you go I wish you the best.


Kelly
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Old 01-11-2013, 02:36 PM
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Quote:
Originally Posted by delawarebill View Post
'02 chebby truck and its got the usual cab corners that are shot.
the replacements are about 130 ea. so that ain't gonna happen. its my daily driver work tk.. saw somewhere bout using hi expanding foam from lowes/home depot.. foam it, and smooth it out and i guess use bondo to smooth it all out for paint..
any suggestions or advise on doing this...tks
DON'T DO IT !!!!

A close friend of mine had a very nice streetrod that he put some inside,, Not to fix any holes.. and no time it rotted out the side of his car.. He had to take the whole car back down and fix it... It costed him big time... Don't do it...
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Old 01-12-2013, 04:19 AM
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Would ya use a band-aid for a heart attack.
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Old 01-12-2013, 05:20 AM
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wouldnt the foam hold water causing it to rot???
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Old 01-12-2013, 06:16 AM
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If I was going to do a cheapo repair like that (yes, I have)....I would use the long strand fiberglass stuff....much stronger and more moisture resistant.
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Old 01-12-2013, 06:49 AM
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i'm agreeing with all of u..

did a search of this site and could not fine anything.. but doin a google i did find it on here.. and other places too.. don't think the foam is now a good idea.. i thought i ck'd with lmc on the parts but i'll do it again.. exc points from all.. tks
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Old 01-12-2013, 09:32 AM
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It will work I've done it but you must use a closed cell foam. The aftermarket cab corners for this are so reasonable I dont know why you would.
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Old 01-12-2013, 10:01 AM
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Quote:
Originally Posted by deadbodyman View Post
wouldnt the foam hold water causing it to rot???

"Closed cell" won't, but I if any moisture got in there it could get between the metal and foam, so the foam doesn't even need to soak it up to cause a problem.

I have to tell you guys, foam is used a LOT in late model cars. We are talking even "structural" foam to reinforce the structure! "Anti Flutter" foam which is soft and made to cut down on road noise, most every car these days has it in right above the rockers and up in the pillars. They will have rear body panels that literally will have a number of square feet of the closed cel in it, a big block of foam with metal around it literally.

I can see some great uses for it to quiet an older car up. I actually have a pile of photos on my computer at work to do a "Basics" on the subject.

But Randy brings up a very good point, you had better be sure it is WATER TIGHT! Or you could be creating one heck of a mess and a quieter cabin sure as heck isn't worth it. A lot of these old cars were designed for water to go thru areas, that is why they often have drains in the bottoms of the rockers and quarters. Todays cars don't have these, the car was designed so the water NEVER gets into it. In older cars it was common to have water dripping out of the rockers and doors after a wash, some foam in there could cause some BIG problems.

Bill, I have to ask, why worry about it? If you aren't going to fix it even close to right, why not just leave the rust there and drive it? It rusted from the INSIDE OUT, remember that. Somehow moisture got in there and it rusted from the inside out. So what can you do to stop that moisture from getting in there, THAT is the challenge before you fill up the rust holes.

My daily driver has a rust spot at the bottom of the door, it is going to stay there unless I finish every other project I have and I don't see that happening.

Brian
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Old 01-12-2013, 06:26 PM
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A lot of the new cars today are different metal's and different coating then the older cars... You can use it... But remember what I said happen to my friends car.. We are talking about a $60,000 dollar streetrod,, I SEEN this first hand.. And he was doing it to make his car quiet... Again..Don't do it...You think you have bad cab corner's now..WAIT...
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Old 01-12-2013, 09:08 PM
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If this is one of those quick fixes (foam& bondo & spray can primer )I'd say your on your own ...but if your keeping the truck ,want to fix it even half way right just get the cab corners ,glue them on if you dont have a welderthen get some half way decient spray can primer from the body supply store 2k or epoxy (if you dont have a compressor or spray gun) and it'll last a good 2-3 yrs....The foam and bondo is a waste of time it'll probably fall out in 6months and untill it does it'll just look cobbled up...50.00 for a cab corner is cheap when you figure it''ll last 3 yrs at least..... might last longer...get the cab corner or make one yourself with an old hood thats already epoxy primed on the inside,and painted on the outside thats the cheapest way if your handy and its a lot more fun making one ...for a couple bucks...
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