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Old 02-06-2006, 07:53 PM
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Aluminum against steel

Ive been reading some old threads lately, and Ive been thinking about a cool Idea I had.
Ive been cleaning and painting and what not around where the engine used to be in my truck. I want to put some aluminum diamond plate around the fenders and firewall just to dress it up some. Id like it to be aluminum so I can keep it polished up, and it won't be under a lot of stress so scratches won't be a big deal.
But what bothers me is the corrosion it causes with the steel of the truck. I don't want to put a peice of plywood behind it but would maybe some plastic washers between the aluminum and steel would work where I put the bolts? or some type of rubber strips between the two?
Any thing else I could do to prevent my truck from turning into a rust bucket?


Brad

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Old 02-06-2006, 08:22 PM
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fenders

you are on the right track with the washers or rubber stripping.anything to keep the two separated will work.the only other problem is the heat under the hood could cause the aluminum to dull faster you might consider possibly going with a stainless fender
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Old 02-07-2006, 10:20 AM
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Thanks man.
So I guess if I just go to lowes or home depot and buy some cheap rubber weather seals for windows and just stick it to the back of the aluminum it should be fine. cool


Brad
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Old 02-07-2006, 10:51 AM
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How are you attaching the aluminum? Bolts? Screws? Isolating the panels will be impossible if you are hard mounting them with steel fasteners. No matter how much rubber you put between them there is still a ground path through the fasteners...
I wouldn't worry about it. Modern day cars use aluminum and steel in mixed assemblies all day long with no problems. If you keep the aluminum polished I doubt you will have any problems with it... It will not cause your truck to rust any faster.
Mark
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Old 02-08-2006, 11:26 AM
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Lowe's has a selection of nylon bolts and such also. Since there will be no stress on the panels that would be a good solution.
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