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what would you Do ???

Discussion in '1982-Present GM Diesel' started by doctor4x4, Aug 3, 2004.

  1. doctor4x4

    doctor4x4 1/2 ton status

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    Hey all finnally getting some time to post up here again and do a little browsing around here on the site so i would like your opions and experience's in choosing what gear ratio to run and why
    here are the states
    turbo 6.2 diesel good solid motor
    but very heavy truck as it is a true K30 crew cab
    turbo 400 tranny with a 205 t case
    i will be using it to haul our bikes and a small camper or trailer my K30 off road truck around mostly flat land some hills but nothing to crzy
    running 8 " lift with 38.5" tires
    i am wondering what gears to run 4: 10 d60 front a 14 bolt ff rear or 4:56 D60 front and D70 rear
    what ya think ???
    and thanks for your feed back in advance
     
  2. azblazor

    azblazor 1/2 ton status Premium Member

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    I vote for the 4.56 with that tall of a tire. With normal size up to 33 or so 4.10 would work. But if I were you I would use the calculator over at 4lo to figure out your RPMs at your expected highway/pulling speeds and go from there.
     
  3. smprider112

    smprider112 1/2 ton status

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    with 38'sand it being a tow rig (shouldnt exceed speeds of 60mph) I'd run 4.56's at LEAST maybe even lower!! for the extra pulling power
     
  4. doctor4x4

    doctor4x4 1/2 ton status

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    Thanks guys
    that is what i was thinking also
    as i know these 6.2 love there low rpm power band
    so wanted to ask to make sure
    R
     

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