3.42 gear ratio

Discussion in 'Flatbed Trucking Forum' started by Dadetrucking305, Aug 11, 2018.

  1. Ruthless

    Ruthless Road Train Member

    8,804
    86,259
    Aug 28, 2010
    The City.
    0
    I run tall rubber; 1 truck w 3.90 & 1 Truck 3.70.
    I'd swap both to 3.55 if a deal came up.
    I run local regional NYC/Boston.
     
    KB3MMX and Justrucking2 Thank this.
  2. Truckers Report Jobs

    Trucking Jobs in 30 seconds

    Every month 400 people find a job with the help of TruckersReport.

  3. Justrucking2

    Justrucking2 Road Train Member

    3,211
    4,292
    Sep 12, 2017
    Plymouth MI
    0
    Thanks, you know my issue all to well.
     
  4. TripleSix

    TripleSix God of Roads

    18,328
    128,055
    Apr 10, 2009
    Copied in Hell
    0
    Why dont you swap with him?
     
  5. Ruthless

    Ruthless Road Train Member

    8,804
    86,259
    Aug 28, 2010
    The City.
    0
    Ds402/ds404
     
    stwik and johndeere4020 Thank this.
  6. mc8541ss

    mc8541ss Road Train Member

    1,467
    2,015
    Sep 22, 2007
    Lower Alabama
    0
    I have a set of 3.90s Eaton’s. I’m about to pull out. Just rebuilt a couple of years ago. They will be going up for sale soon.
     
    KB3MMX Thanks this.
  7. Espressolane

    Espressolane Road Train Member

    17,029
    102,871
    Nov 21, 2009
    Just south of the north 40
    0
    Take the truck to a shop for what the engine manufacturer is. Have them run a full printout. Usually about 11/12 pages. Will have all the settings plus history.
     
  8. Dadetrucking305

    Dadetrucking305 Heavy Load Member

    983
    2,583
    Sep 15, 2011
    Cibolo,Texas
    0
    Thanks.Rawze actually went through them for me and told me that it had a max engine speed of 4373.

    Also drove 3.5 hrs one way yesterday to look at a very nice 2011 Mack Pinnacle with an MP8 yesterday and it was a total fail after going through the paperwork.Seems like it was at the dealer every month for electrical issues.Also had the injectors replaced 3 times.

    There’s a 2014 Freightliner with a 505hp DD15,619,000 miles,13 speed,240 wheel base,and 3.42 gear ratio just down the street from me.Been wondering if I should go take a look at it.Seems like the ISX 2250 has more problems than the Detroit.The only thing I’m worried about is the 3.42 gear ratio.
     
    Last edited: Aug 17, 2018
    KB3MMX Thanks this.
  9. Dadetrucking305

    Dadetrucking305 Heavy Load Member

    983
    2,583
    Sep 15, 2011
    Cibolo,Texas
    0
    Anyone have experience with Mack Mp8
     
  10. KB3MMX

    KB3MMX Road Train Member

    3,069
    2,588
    Dec 29, 2014
    Orrstown, PA
    0
    Yeah, I have one in my Volvo....D13/MP8 same motor, different color

    What do you need to know?

    .
     
    Dave_in_AZ Thanks this.
  11. Dadetrucking305

    Dadetrucking305 Heavy Load Member

    983
    2,583
    Sep 15, 2011
    Cibolo,Texas
    0
    Are they good motors? How often do the injector cups go bad? Is the motor strictly dealership fixable or is it open source? And would I be better off with a Cummins ISX or Detroit?
     
  • Truckers Report Jobs

    Trucking Jobs in 30 seconds

    Every month 400 people find a job with the help of TruckersReport.