I was changing the oil under the coach the other day and noticed there is a large 6" gap between the front of the radiator/condenser and the front cross member.

On all newer cars and trucks there is a air dam installed underneath to direct air flow into the front of the radiator. It's common to see shields and plastic covers underneath cars and trucks, so why not on the F53 chassis. Not sure if this was fixed in the 1999 chassis redesign, but my '97 doesn't have one.
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