drive and 4lo. You may want to manually shift it. When we went to to two pulls last weekend this is what I believe Aaron (Rudy's) did with his 2011. The vids of his pulls are posted around here. He did well pulled right there with some tuned 7.3s and 6.0s. Def impressive for a stock truck. He did have 325 BFGs All Terrains on his tires so a little more traction than the continentals.
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