Jump to content

18 speed mack range change noise


Cruiseliner
 Share

Recommended Posts

Hi, I have a 90 model valueliner with a 18 speed Mack box, I think it's a T2018. When I go from low range to high it makes a big clonk noise.

The box is only 3 years old with only a cupple of thousands Ks on it.

Is there an adjustment or something to stop this.

All help is a appreciated.

Link to comment
Share on other sites

  • 1 month later...

Could be a loose synchro fork pinch bolt and or a synchro failure. Mack has the tools to do a "inframe" synchronizer replacement. Every truck is different, it depends on how much room you have to work with.

You can do an inframe synchro on a Granite in 6-8 hours.

I did an inframe on a RD one time. The rear of the cab had to be unbolted and lifted up, it was a total waste of time. Pulling the trans would've been easier.

The trans is a T2180

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   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.

 Share

  • Recently Browsing   0 members

    • No registered users viewing this page.
×
×
  • Create New...