Truckers Report Jobs

Find Trucking Jobs

Company Driver Company Driver Dry Van Dry Van Flatbed Flatbed Refrigerated Refrigerated Specialized Specialized Owner Operator Owner Operator
More Trucking Job Searches ⌄ Fewer Trucking Job Searches
⌃

eaton tranny, 94 binder, grinds like a mother.....

Discussion in 'Trucks [ Eighteen Wheelers ]' started by greaseburner, Aug 26, 2014.

  1. Aug 26, 2014 #1
    greaseburner

    greaseburner Light Load Member

    155
    45
    Sep 13, 2013
    0
    Not to familiar with trucks this old, but we just recently purchased this 94 binder quad axle dump truck. It has a eaton tranny, 8LL. It takes near perfection to shift it without severe grinding. One of the drivers said the synchros are bad, mechanic says not, as it goes between high and mid range no problem. Mechanic says this is typical of this year range eatons. Is this so, what can be done to fix it if possible and if it can't be, how about swapping it with a different year/make one? Thank you.
     
    greaseburner, Aug 26, 2014
    greaseburner, Aug 26, 2014
    #1
  2. Truckers Report Jobs

    Trucking Jobs in 30 seconds

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

  3. Aug 27, 2014 #2
    GrapeApe

    GrapeApe Road Train Member

    2,215
    2,211
    Jan 7, 2013
    0
    It is not a synchronized transmission, so your mechanic is right, the only synchro is for the range selector. If it shifts range without grinding, the synchro is working. They were a little picky on lube, I'd drain it and refill with the recommended SAE50 trans lube. I've seen a few hard to shift trans that the owners put 75-90 gear lube in them, changed the oil with SAE50 and it was better.
     
    GrapeApe, Aug 27, 2014
    GrapeApe, Aug 27, 2014
    #2
    greaseburner Thanks this.
  4. Aug 28, 2014 #3
    special-k

    special-k Road Train Member

    1,523
    3,258
    Dec 27, 2008
    Southern Ontario Canada
    0
    8LL weren't know to be hard shifting transmissions so I would think you have some sort of an issue. They do need a 500 or so drop in rpm. So you have to shift them a little slower than some others.
     
    special-k, Aug 28, 2014
    special-k, Aug 28, 2014
    #3
  5. Aug 29, 2014 #4
    preppypyro

    preppypyro Bobtail Member

    36
    7
    Sep 10, 2013
    0
    What kind of engine is in front of the 8ll? I noticed with my last truck, it had a cummins 444, and it was touchy to shift as well. The way the rpm on the cummins was, made it so you had to be very precise. It took a little getting used to, but once a guy got used to it, it wasnt bad.
     
    preppypyro, Aug 29, 2014
    preppypyro, Aug 29, 2014
    #4
  7. Sep 1, 2014 #5
    greaseburner

    greaseburner Light Load Member

    155
    45
    Sep 13, 2013
    0
    N14 cummins. what scares me is i'll have a driver in it.....

    thanks for all the replies
     
    greaseburner, Sep 1, 2014
    greaseburner, Sep 1, 2014
    #5
  8. Sep 1, 2014 #6
    Guntoter

    Guntoter Road Train Member

    1,659
    1,521
    Mar 24, 2012
    Phoenix, AZ
    0
    Eatin' trannies... Not the thread I was hoping it would be :biggrin_25513:
     
    Guntoter, Sep 1, 2014
    Guntoter, Sep 1, 2014
    #6
    123456 Thanks this.
  9. Sep 1, 2014 #7
    Licensed to kill

    Licensed to kill Heavy Load Member

    830
    2,435
    Dec 31, 2010
    Alberta
    0
    A friend of mine had the exact same issue with a similar truck/engine/tranny combo. Turned out the bell housing bolts were loose. Tightened them up and all was well.
     
    Licensed to kill, Sep 1, 2014
    Licensed to kill, Sep 1, 2014
    #7
  • Truckers Report Jobs

    Trucking Jobs in 30 seconds

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