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  1. Y

    Differential ratio

    Forgot to mention that the truck is in 4wd low range when I drive down. What do you think
  2. Y

    Differential ratio

    I drive a 1991 Dodge E 250 with Cummings 3 speed automatic trans and 3:07 differentials. I live where the access road has an adverage grade of 25%. The engin doesn’t hold the truck back when I go down the hill. At 5 mph the engin at idle pushes me. I think the best way to fix this problem would...
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