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ben384608

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Everything posted by ben384608

  1. I have an 88 suplerliner with a 350 mack and 9 speed trans. I had the fuel turned up and the truck runs much better. My biggest gripe is that whenever I have to climb a hill (not just big ones) the truck dies off. If I changed my trans from a 9 to a 12 or 13 would it make much of a difference? I know I won't have more power but it just seems like a few more gears would be nice. Just a rookie and any help greatly appreciated.
  2. I have an 88 Suplerliner with 350 mack engine and mack 9 speed trans. I had the fuel turned up by a local diesel shop and that helped give me some more power. The truck runs great until I get in the last few gears or on the interstate and it just seems like every little hill just kills it. If I changed to a 12 or 13 speed trans would the make much of a difference? Thanks for the help, this is my first truck and really want to keep it.
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