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Old 12-30-2009, 08:13 PM   #10 (permalink)
Fubeca
EcoModding Lurker
 
Join Date: Oct 2009
Location: DFW
Posts: 87

The Truck - '06 Chevrolet Silverado Ext Cab 4x4
90 day: 18.5 mpg (US)
Thanks: 4
Thanked 33 Times in 15 Posts
Quote:
Originally Posted by thatguitarguy View Post
OSB - the rich man's cardboard.....


Total investment:

4 2x4s = $7
2 OSB = $12
2 1/4" Ply = $17
Aluminum Tape = $11
Shrink Plastic = $15

Grand Total: $62

This is really just a test to make sure I can to it and work on perfecting the shape. If I can get the kinks worked out and if I see enough of an economy improvement then I'll go for something a little more permanent and better constructed.

Update:
Done for now. I've got a couple hundred miles to drive during the next couple of days so I'll report back on my experience.

I might do some tuft testing to see if it is too high - I'm a little concerned about a couple of the edges. I'm also concerned about the gap. I may need to come up with some kind of filler.

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Last edited by Fubeca; 12-31-2009 at 01:47 AM.. Reason: Added the pic
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