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1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks Discuss the Early Eighties Bullnose Ford Truck

Rust on the frame

Old Feb 7, 2005 | 02:14 PM
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From: Zanesville,Ohio
Rust on the frame

Hi everybody,while looking at the frame especially in the front near where the coil springs attach,I noticed a moderate amount of rust on the frame as well as where the top of the coil springs attach to the bracket.
When I rubbed my hand against the rust if comes off in flakes,is this becoming dangerous,severly weakening the frame and the mount that the coil springs attach to?
I was considering restoring the body (rust in the usual places) but after seeing this,I am wondering if the truck is worth it and if it if becoming dangerous.


The truck in question is 1981 F150.
Any help will be greatly appreciated
Jeff
 
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Old Feb 7, 2005 | 04:53 PM
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From: GANS
Originally Posted by 1981 f150
Hi everybody,while looking at the frame especially in the front near where the coil springs attach,I noticed a moderate amount of rust on the frame as well as where the top of the coil springs attach to the bracket.
When I rubbed my hand against the rust if comes off in flakes,is this becoming dangerous,severly weakening the frame and the mount that the coil springs attach to?
I was considering restoring the body (rust in the usual places) but after seeing this,I am wondering if the truck is worth it and if it if becoming dangerous.
Unless you sand blast it and it isn't real thin, go for it. Don't restore it unless you fix the frame.
 
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Old Feb 8, 2005 | 07:54 AM
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Originally Posted by bremen242
Unless you sand blast it and it isn't real thin, go for it. Don't restore it unless you fix the frame.
Thanks for answering,
The frame seems to be solid but it has been rusting for several years (I bought the truck new in 1981) I talked to an individual who specializes in sandblasting frames for hot rodders and restorers,and he quoted me $125.00 to sand blast the frame and about $350.00-$400.00 if he sandblasts and seals and paints the frame and rear end.

p.s What would be considered too thin?
 
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Old Feb 8, 2005 | 09:01 AM
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Be careful with that frame for some reason Ford was experimenting with different metals in the 80-81 trucks and the frames are thinner then the 82 and on trucks. I have an 81 F-150 and the frame behind the cab broke in three places and I cut parts of the frame out and welded in new sections. The weird thing is from the cab up the frame looks like it came off the showroom floor. My frame is holding up and I now have straight axles out of a 1 ton and a 460 in my truck also running on 38's. I have not had any problems yet But I always worry about it. I bought a 87 F-350 4x4 and shortened the frame the frame is being hot dipped galvanized as we speak along with all the crossmembers and brackets
 
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Old Feb 8, 2005 | 05:02 PM
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From: GANS
Originally Posted by 1981 f150
Thanks for answering,
The frame seems to be solid but it has been rusting for several years (I bought the truck new in 1981) I talked to an individual who specializes in sandblasting frames for hot rodders and restorers,and he quoted me $125.00 to sand blast the frame and about $350.00-$400.00 if he sandblasts and seals and paints the frame and rear end.

p.s What would be considered too thin?
my F250 had 3/16" frame rails and where the rear shackles mounted, it was rusted thru to about 1/16" of an inch.

you have to go thru and plate the areas that are bad. You have to take all the hangers off and bolt them back on to insure that they don't rust out behind the bracket. it cost me around $650 to have my f250 done this way. painted & sand blasted.
 
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Old Feb 8, 2005 | 11:56 PM
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From: Zanesville,Ohio
Originally Posted by bremen242
my F250 had 3/16" frame rails and where the rear shackles mounted, it was rusted thru to about 1/16" of an inch.

you have to go thru and plate the areas that are bad. You have to take all the hangers off and bolt them back on to insure that they don't rust out behind the bracket. it cost me around $650 to have my f250 done this way. painted & sand blasted.
Thanks again,I don't think I have the know how or skill to disassemble the truck that far down.I was worried how much of a problem I was going to have trying to get the bed off let alone the cab.
 
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