Converting to automatic transmission

Discussion in 'Mack Forum' started by Jakester1017, Jan 22, 2020.

  1. Jakester1017

    Jakester1017 Bobtail Member

    1
    0
    Jan 22, 2020
    0
    I currently have a 1978 r Mack twin stick wanted to see if it’s possible to put an automatic transmission in it
     
  2. Truckers Report Jobs

    Trucking Jobs in 30 seconds

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

  3. "semi" retired

    "semi" retired Road Train Member

    7,695
    14,093
    Apr 16, 2014
    high plains colorado
    0
    What's wrong with the 2 sticker? I'd have to think switching over would be a huge hassle.
     
    BUMBACLADWAR and Bean Jr. Thank this.
  4. Dave1837

    Dave1837 Light Load Member

    297
    610
    Nov 16, 2019
    Pennsylvania
    0
    I'm sure it's possible but the aggravation of finding an automatic that could pair up to that engine would be way more than shifting 2 sticks lol especially one that's in good condition
     
    BUMBACLADWAR and Bean Jr. Thank this.
  5. Bean Jr.

    Bean Jr. Road Train Member

    4,114
    6,259
    Mar 30, 2014
    0
    Are you thinking of an auto shift or putting in an Allison? Auto shift should require an engine with an ecm.
     
  6. buddyd157

    buddyd157 Road Train Member

    9,370
    20,047
    May 25, 2017
    New England area
    0
    anyone with money, can do anything.

    transmission, transmission to engine adapter, transmission cross member, drive shaft(s), plumbing, maybe wiring...

    yup, it can be done.

    or do a complete resto-mod, with new engine, transmission, and all associated parts.

    yup.....money talks, BS walks.....
     
    BUMBACLADWAR Thanks this.
  7. spsauerland

    spsauerland Road Train Member

    3,146
    8,063
    May 31, 2010
    West Harrison, In
    0
    Find an older non electrical Allison. Finding flexplate might be a bear.
     
    Bean Jr. Thanks this.
  8. Chubby Fly

    Chubby Fly Medium Load Member

    569
    769
    Nov 25, 2019
    0
    Curious as to why you would want to do that to a 78 Mack r. Is this a restored truck that you use as your money maker? If not, and it’s just a toy, getting rid of the 5 speed and putting a auto in it will break enthusiasts hearts everywhere
     
    Bean Jr. Thanks this.
  9. BUMBACLADWAR

    BUMBACLADWAR Road Train Member

    1,790
    1,698
    Dec 5, 2013
    0
    Maybe an automatic out of an 80's school bus? And some custom bell housing fabrication/ drive shaft length etc. Im getting frustrated just contemplating it.JMO
     
    buddyd157 and Bean Jr. Thank this.
  10. "semi" retired

    "semi" retired Road Train Member

    7,695
    14,093
    Apr 16, 2014
    high plains colorado
    0
    If it's a 2 stick 6 speed, that was the "lazy man's" truck.
     
    buddyd157 Thanks this.
  • Truckers Report Jobs

    Trucking Jobs in 30 seconds

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

  • Draft saved Draft deleted