Swapping Rears.....?

Discussion in 'Volvo Forum' started by jdmach77, Jan 27, 2013.

  1. Jan 27, 2013 #1
    jdmach77

    jdmach77 Light Load Member

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    Jan 19, 2012
    New Jersey
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    Hi, i have a volvo vnl 670 ved12d 465 hp 13 spd, i do 300 miles round trips trough lot's of hills and my rears are 3.42 or something like that i was wondering what are the right steps to change rears to 3.70's and what follows after done, my wheels are 22.5, i'm grossing 80,000 all the time with a little off road, i just want a little more up the hills.
     
    jdmach77, Jan 27, 2013
    jdmach77, Jan 27, 2013
    #1
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  3. Jan 27, 2013 #2
    25(2)+2

    25(2)+2 Trucker Forum STAFF Staff Member

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    the road less travelled
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    You have a 13 speed, probably could drive in 12th or 11th and accomplish the same thing at no cost.

    Unless you are always on the wrong side of a split, I wouldn't change a thing unless the ratio was too high.
     
    25(2)+2, Jan 27, 2013
    25(2)+2, Jan 27, 2013
    #2
  4. Jan 27, 2013 #3
    jbatmick

    jbatmick Road Train Member

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    I agree, just drop a gear or two. Swapping rears is not hard to do,2 men do it in a day, but I hate to change compontents unless they are broken, or wore out.
     
    jbatmick, Jan 27, 2013
    jbatmick, Jan 27, 2013
    #3
  5. Jan 27, 2013 #4
    jdmach77

    jdmach77 Light Load Member

    54
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    Jan 19, 2012
    New Jersey
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    To be honest this is the first time that i own a truck with a 13 speed, need more tips and tricks.....it will be appreciated. thanks!
     
    jdmach77, Jan 27, 2013
    jdmach77, Jan 27, 2013
    #4
  7. Jan 27, 2013 #5
    lastgoodusername

    lastgoodusername Medium Load Member

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    find the sweet spot in the power range of your motor. i wouldn't waste the money on a ratio change unless one goes or is going out. try different engine speed / gear choice until you find where it will pull best. hope this helps , johnny
     
    lastgoodusername, Jan 27, 2013
    lastgoodusername, Jan 27, 2013
    #5
  8. Jan 27, 2013 #6
    jdmach77

    jdmach77 Light Load Member

    54
    9
    Jan 19, 2012
    New Jersey
    0
    Thank you guys I'll be trying out different things to see if I can improve my driving!
     
    jdmach77, Jan 27, 2013
    jdmach77, Jan 27, 2013
    #6
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