Peterbilt 379 transmission swap question

Discussion in 'Peterbilt Forum' started by toomuchtime, Mar 8, 2013.

  1. Mar 8, 2013 #1
    toomuchtime

    toomuchtime Bobtail Member

    1
    0
    Nov 3, 2011
    san diego, ca
    0
    Hello guys. I have a 1997 peterbilt 379 with a ten speed. I would like to swap in a 13 speed or 18 speed. Will the new tranny bolt up or will there be fabrication that needs to be done. If it does bolt up how do i know which transmission to get RTLO???? etc .

    Thanks for the input guys im ready to throw this 10 speed in the trash im not a big fan.

    Thanks
     
    toomuchtime, Mar 8, 2013
    toomuchtime, Mar 8, 2013
    #1
  2. Truckers Report Jobs

    Trucking Jobs in 30 seconds

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

  3. Mar 8, 2013 #2
    Superhauler

    Superhauler TEACHER OF MEN

    12,209
    100,735
    Jan 30, 2010
    keep stroking.
    0
    the only thing i can think of is you will have to cut the drive shaft to fit.
     
    Superhauler, Mar 8, 2013
    Superhauler, Mar 8, 2013
    #2
  4. Mar 8, 2013 #3
    chalupa

    chalupa Road Train Member

    3,757
    1,643
    Jul 22, 2010
    Houston,Texas
    0
    Yep , 3 " and new air lines and a new shift handle. You'll need to know the HP and torque of your engine to match the tranny too. This will effect what you buy.

    Look at the tag on your 10 speed. Should read like RTLO 16610 B etc. The 16 or first 2 numbers are the torque rating of the tranny.

    One more thing, very few rebuilders are going to want to swap a 10 for a 13 -15-18 speed even with cash. Those trannys draw top dollar.

    Good luck
     
    chalupa, Mar 8, 2013
    chalupa, Mar 8, 2013
    #3
  • Truckers Report Jobs

    Trucking Jobs in 30 seconds

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