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GM part# =
perfect fit.
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No fastners
required.
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Better heat
insulation in cab = cooler cabin, cooler A/C.
-
Less engine
noise outside your truck.
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Less noise
in cabin.
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Better stereo
sound.
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You can speak
using your cellular phone without having to stop ;)
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Have to disconnect A/C lines, heater lines and
brake lines.
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