I never have, but I would stick to rubberized undercoating. if you ever decided you didn't want it anymore it would be impossible to remove, and if you ever had to replace any metal due to rust, you don't know how that lining would react to welding.
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'69 CST Short fleetside
Lowered, 400 small block, 700R4, 4 wheel disc brakes, front sway bar & rear camaro sway bar (in progress)
'87 V10 4x4 Short Fleetside
Quad Suspension and Dual Tanks
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