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Username Post: Truck bed repair        (Topic#343220)
doubleE 
Valued Contributor
Posts: 3871

Loc: Eagan MN
Reg: 06-02-03
03-11-17 08:00 AM - Post#2680861    

Trying to decide what to do with the steel bed on my 72 fleet side short bed. The truck spent most of it’s life in Arkansas. The rear bumper says “Clinton Arkansas”, Where ever it was they must have had a lot of fine red colored dust that infiltrated every nook and cranny. This included the underneath support structure of the bed. This in turn held moisture that caused rust from the bottom up. There are pin holes – up to 1/8th inch on the top surface of the bed. By looking at these holes it’s easy to see just where the cross support braces are.

So what to do? At this point in time I’m not ready to sink in $$ to replace the steel bed (or replace it with a wood bed). I use the truck mostly on weekends, local car shows, and misc hauling stuff like lumber, black dirt, etc. I would like to arrest the rusting to preserve the integrity and strength. One thought is to apply a DIY roll-on bed liner or install a rubber bed mat, or both. Each of those would run under $100. Anyone have experience with these rubber mats like the "DEE ZEE" mat?

About 10 years ago I seem to recall Eastwood had a paint product meant to fill pin holes in floor pans and the like but I don’t see it in their current catalog.

So looking to see what others have done or tried and how successful these were. I do use a tonneau cover now so it’s not so much an appearance issue.

Eric


Proud owner of My Blue 62 Impala SS


Edited by doubleE on 03-11-17 08:06 AM. Reason for edit: No reason given.

 


JimKshortstep4x4 
Chevytalk Moderator & "16th Year" Silver Supporting Member
Posts: 5108
JimKshortstep4x4
Loc: Muskegon, MI, USA
Reg: 03-28-02
03-11-17 08:38 AM - Post#2680869    
    In response to doubleE

A friend of mine used a rubber mat in his bed and it promoted rusting of the surface. I have had good luck with spray on bed liners.

Are the rust holes mainly over the cross supports such that you cannot get at them?

Jim

65 Impala SS, 400sbc, Muncie M-22
66 Impala SS, 396, TH 400
69 El Camino, 350, TH 350
71 Short bed stepside 4x4, 350/TH 350
71 Snow plow, 4x4, 350, TH 350
72 GMC Shortbed, stepside, 427/TH 400


 
doubleE 
Valued Contributor
Posts: 3871

Loc: Eagan MN
Reg: 06-02-03
03-11-17 09:40 AM - Post#2680885    
    In response to JimKshortstep4x4

The rubber mat - trapping condensation under it was one of my concerns. Would think using the tonneau cover would minimize this. And when I did haul dirt, afterward I would pull the mat, hose down the bed and mat and allow to completly dry before reinstalling the mat.

Yes the pin holes are only where the cross braces are underneath - thus my theory that dirt that accumulated in the braces over time trapped moisture that caused the rust. other than where the braces are, the bed is solid. I do plan to see if I can use my high pressure washer to remove any dirt still there. Would definitely want to do that before trying to apply a bed liner coating. Not sure what kind of access (underneath) there is to flush the dirt out.

Eric

Proud owner of My Blue 62 Impala SS


 
LUVmachine 
Frequent Contributor
Posts: 1453

Age: 38
Loc: Redding Ca
Reg: 10-02-14
03-11-17 07:21 PM - Post#2680976    
    In response to doubleE

The problem with rust is that you need to either cut it out or replace the rusty pieces or it will continue to keep eating the metal.

There are some paints that will kill the rust and seal it so it doesn't keep spreading.

71 Chevelle BBC powered
71 C-10 454 with weiand 177 (SOLD)
72 406 sbc powered Chevy LUV sleeper (SOLD)
2010 GMC Sierra crew cab 4X4
http://s626.photobucket.com/user/GJohnson81/libra r...


 
JimKshortstep4x4 
Chevytalk Moderator & "16th Year" Silver Supporting Member
Posts: 5108
JimKshortstep4x4
Loc: Muskegon, MI, USA
Reg: 03-28-02
03-12-17 04:11 PM - Post#2681120    
    In response to doubleE

If you can clean inside the supports as in pressure washing and get the interior dry, including blowing it out with compressed air then a product like POR will do a pretty good job of covering the rust. Applying the POR so that complete coverage is done can be time consuming! I have used a pump style garden sprayer to spray POR. Getting complete coverage internally could mean a very messy job!

You could end up drilling access holes in addition to any existing openings.

Jim

65 Impala SS, 400sbc, Muncie M-22
66 Impala SS, 396, TH 400
69 El Camino, 350, TH 350
71 Short bed stepside 4x4, 350/TH 350
71 Snow plow, 4x4, 350, TH 350
72 GMC Shortbed, stepside, 427/TH 400


 


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