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You can also consider making them from light weight plastic. Check out Foam Core PVC or Foam PVC sheet from Tapp plastics, 1/8". It is very light, easy to cut with saw or shears, heat with a heat gun to bend. If they hit something, they will just shear off without breaking anything under your car or cutting a tire. And they won't be a real hazard for anyone behind you.
Make them real short, then extend them with sheet rubber and pop rivets.
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It's all bad
Last edited by Walter White; 01-01-2014 at 03:20 PM.
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