Jump to content
  • entry
  • comments
  • views

Mack 12 speed transmission?



I am looking at a 87 superliner, camelback, 100k miles, with a 12 speed transmission. Would this be a good transmission for hauling grain on short trips (5 to 20 miles)? I had a friend say they can give some trouble. How reliable are they? We will prob. only put 4k miles a year on the truck. Thanks!


Recommended Comments

The mack 12 speed is a great transmission if you can shift it , its not for the laidback driver ,I've had a couple and no trouble. You do have to make sure the air pressure is ajusted to the right pressure, that makes them shift the best.

Link to comment

a 12 speed mack tranny is a work horse,when its used correctly it can be a very enjoyable relationshiip,but if i were doing the super short stuff,id just find me an 5 spd

Link to comment

Mack12 speed was the transmission of choice for Super B trains in the Canadian Rockies for many years, it will be a good transmission for your job.I takes a bit of getting used to but they were well built and I'd go with one every time. Ted Campbell

Link to comment
Add a comment...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

  • Create New...