I used the thin corrugated white plastic sheets that you can buy at Home Depot to make a model of what the inner wheel well liner should be. After measuring several times I was able to come up with the right design and check it for fit before having the final sheet metal manufactured. The sheet metal is 18 gauge galvanized and then I had it coated with LineX. The rest of everything in the engine compartment, behind the front grill and the wheel wells was lined with 3/4 Boom Mat which is thermal acoustic and has its own adhesive backing. Under the engine cover I used 2 layers of the 3/4 Boom Mat. Its all made a big difference in noise and heat reduction. I may install padded carpet, or padded carpet squares on the floor in the front cab as well as make a insulated cover to put on the engine cover.
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