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4-hi & 2nd vs. 4-lo & 3rd

Discussion in 'The Garage' started by mountainexplorer, Oct 10, 2004.

  1. mountainexplorer

    mountainexplorer 1/2 ton status

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    For those of you with the SM465 and NP205 combo, how would you compare the overal gearing that 4 high and 2nd gear gives you and 4 low and 3rd gear?
     
  2. tarussell

    tarussell 1/2 ton status

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    To the best of my memory third gear is about 1.6 ( or close to it ) and second gear is 3.58 ( IIRC ) so that would make taking off in third and low possible to get more wheel speed if the motor is happy with that gear .
    Tom
     
  3. thatK30guy

    thatK30guy 1 ton status Premium Member

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    All the previous times I've driven/played with a manual tranny, I've always felt 4-lo/3rd was the best range for most types of off roading. I always liked leaving the t-case is low range because if you needed to go lower, you just downshifted. Also gave the best powerband for the RPM's, too. That picture of my old Brown Turd in my avatar, I was playing in that mud hole in 4-lo/3rd all day long. /forums/images/graemlins/waytogo.gif
     
  4. hawkeye649

    hawkeye649 1/2 ton status

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    [ QUOTE ]
    All the previous times I've driven/played with a manual tranny, I've always felt 4-lo/3rd was the best range for most types of off roading. I always liked leaving the t-case is low range because if you needed to go lower, you just downshifted. Also gave the best powerband for the RPM's, too. That picture of my old Brown Turd in my avatar, I was playing in that mud hole in 4-lo/3rd all day long. /forums/images/graemlins/waytogo.gif

    [/ QUOTE ]

    As an avitar it looks like a sand sculpture. /forums/images/graemlins/laugh.gif
     
  5. m j

    m j 1/2 ton status

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    4hi 2nd = 1 x 3.58 = 3.58
    4lo 3rd = 1.96 x 1.7 = 6.086

    so a hair lower then 4hi 1st but with closer gear spacing to gears above and below meaning easier to shift if you need to.

    odd comparison question.
    4lo 2nd is the most common gear for me
     
  6. mcinfantry

    mcinfantry 1/2 ton status

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    [ QUOTE ]
    4hi 2nd = 1 x 3.58 = 3.58
    4lo 3rd = 1.96 x 1.7 = 6.086

    [/ QUOTE ]

    iirc 1.96 x 1.7= 3.32
     
  7. mountainexplorer

    mountainexplorer 1/2 ton status

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    This is mainly for mud bogs/races where you have a 150' pit. I've always done 4-high and 2nd gear (2nd referring to the 2nd forward gear- the next gear after low gear- listed on the shifter knob as 1). By 3rd I mean what is listed on the knob as 2, but is the 3rd forward gear in the tranny.
     
  8. m j

    m j 1/2 ton status

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    sorry must have had something already in the 'calc'
     
  9. tRustyK5

    tRustyK5 Big meanie Staff Member Super Moderator GMOTM Winner Author

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    4lo and 'third' should give you a hair more wheel speed for the rpm. Not really sure if there is enough difference between 3.58 and 3.32 to notice though.

    Rene
     

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