Maybe the 410 come with the off road package or something. My old truck was a 2006 power wagon with 5.7 4 spd auto and 456 gears. I had to out helper springs on the leaves for weight because power wagons have light weight springs for off roading. Definitely would look at 6.4. Way more power and that new 8 sad tranny should be wonderful. Probably with 8spd tranny and 373 wouldnt be so bad either
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