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Old 07-17-2013, 11:28 AM   #1
masters
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Frame condition

I started teraing down my '84 K20 and I knew the frame had some rust on the back half and didn't think it was too bad. I just want to get some opinions from those who have down frame -off's before. If I decide to keep this frame it will be blasted and either painted with a very good chassis paint or powder coated. From where the bed set on the frame rusting out and the mud staying on there for no telling how long it has pit the metal and I'm wondering if it's worth my time and money or to cut down a 1-ton crew cab frame I have that can be in perfect shape with minimal work. The pics of where I cleaned a few spots so you could see the shape of the frame were cleaned off by a wore out wire wheel. Please give me your honest opinions and which route you would take if this was your truck and you were wanting to do a frame-off.







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Old 07-17-2013, 11:31 AM   #2
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Re: Frame condition

Here's some more







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Old 07-17-2013, 01:52 PM   #3
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Re: Frame condition

id use it if its real thin or rotted apart then id change or repair as necessary
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Old 07-17-2013, 02:14 PM   #4
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Re: Frame condition

It is not thin or rotted anywhere I have found yet. Pretty much from the cab forward has been preserved by oil and grease!
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Old 07-17-2013, 02:19 PM   #5
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Re: Frame condition

It looks very good compared to some I have seen. Once you sandblast it and give it a few good coats of paint it will be fine I am sure.
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Old 07-17-2013, 04:10 PM   #6
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Re: Frame condition

You call that rust!?!?!?! PPPFFFTTTT!!!!!!!!!!!!!!! Welcome to Wisconsin...

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Old 07-17-2013, 04:18 PM   #7
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Re: Frame condition

I know it's not worst case scenario but the frame I have off a crew cab and my '76 C10 are just about perfect. If I'm going to spend $10-$15k on a rebuild I just want to make sure it's worth messing with. Now I just got to figure out something to do with this crew cab frame, I hate to scrap it.
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Old 07-17-2013, 04:30 PM   #8
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Re: Frame condition

looks good to me, not perfect, but good to re-use, just check behind the fuel tank mounts b/c I have seen a few rust out there, when the rest of the frame looked good.

-Sam
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Old 07-17-2013, 04:45 PM   #9
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Re: Frame condition

Quote:
Originally Posted by SamsAutoParts73-87 View Post
looks good to me, not perfect, but good to re-use, just check behind the fuel tank mounts b/c I have seen a few rust out there, when the rest of the frame looked good.

-Sam
I will check it out, I plan on pressure washing it sometime this week and the starting ripping off the rest of the body soon.
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Old 07-17-2013, 04:53 PM   #10
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Re: Frame condition

Do you have any up close up pictures of the cross over fuel lines?
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Old 07-17-2013, 05:04 PM   #11
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Re: Frame condition

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Do you have any up close up pictures of the cross over fuel lines?
No but I can take some, on the K20 or the crew cab frame?
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Old 07-17-2013, 05:12 PM   #12
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Re: Frame condition

If they are still there I'll take some pictures of the crew cab set up! Mine is a crew cab!
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Old 07-17-2013, 07:06 PM   #13
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Re: Frame condition

If a needle scaler doesn't blow holes through it, I'd just seal it up good and call it a day.

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Old 07-17-2013, 09:25 PM   #14
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Re: Frame condition

What do you recommend for paint? I'm currently doing this. I am putting down Rustoleum Rust Metal Primer and was gonna cover it with Rustoleum Stops Rust flat black. Any one see any problems with that? I'm not looking for factory perfect, just not nasty ass old rusty truck.
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Old 07-18-2013, 06:31 AM   #15
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Re: Frame condition

That would be a good frame here in Michigan.
As far as paint, there are dozens of threads about it. Rustoleum is not as good as it used to be (they took out the fish oil that was the real secret). But for a frame, it's nice because you can touch it up cheap and easy. Seems many are using Rust Bullet or Chassis Saver. You might want to consider semi gloss, it's easier to clean and doesn't show the drips of fluids as much.
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Old 07-18-2013, 11:25 AM   #16
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Re: Frame condition

I used Rust Bullet on a replica Lotus 7 frame I built. It sticks like a mofo to rusty metal.

I scaled the rust (louder than hell) and painted the frame on my '77 Silverado with Zero Rust. The Zero Rust isn't as durable a paint as I'd hoped, and scrapes off pretty easily when working around the chassis. It might be that it just hasn't cured yet. Or I'm just clumsy.

POR15 is also popular, but I have never used it.
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Old 07-18-2013, 11:47 AM   #17
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Re: Frame condition

My next frame I will be using Rust Bullet. POR15 is good but the prep is a killer of time and money, but it is good in the end.
For the amount of hard work it takes to do the frame, I would stay away from Rustoleum/tremclad. I used it on several very clean-sandblasted pieces and the rust starts coming through in less than a year. Maybe it depends on where you live? Not sure.
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