Jump to content

90plow

Bulldog
  • Posts

    58
  • Joined

  • Last visited

Posts posted by 90plow

  1. 13 minutes ago, Truck Shop said:

    Main shaft end play, rear main shaft support bearing or input shaft bearing allowing 3rd and 4th sliding clutch to move, does the shift lever move fore and aft 

    when throttling up or down while moving. Plus 3rd and 4th gear clutching teeth are probably worn right along with the sliding clutch teeth. 3rd and 7th are 

    used alot and first to go. Plus a worn broken main shaft key can cause issues too.

    Are you referring to my issue or the other guy who hijacked the thread with a different topic?

  2. 21 minutes ago, tjc transport said:

    all but one of the 8ll trans trucks i ever drove had this problem. 

    i think the 8ll is the absolute worst trans ever made.

    10, 13, 15 and 18 speeds never had that issue.  

     

    I have one in my single axle and it’s a nice trans. Can’t be the worst trans ever made if it’s in thousands of trucks without major issues. 

  3. I have an eaton8ll in my 2007 Mack granite I recently purchased.  Truck has 212,000 miles and 20,000 hours.  Trans seems fine other than the 5th to 4th drop.   Occasionally the trans misses 4th and seems to be in 8th.  It’s driving me nuts when I’m downshifting loaded.  Some have said the synchros are shot and have suggested just getting a rebuilt trans for 3800 and throwing it in the truck vs. re doing the synchros.

    Could it be anything besides synchros?

    How intense is the synchro replacement?

     

    thanks

    Eric

  4. So now onto bigger projects. Has anyone added power to a em7 275 H.P.? I would like to get a little more umph out of the old truck and the dealer doesn't have any real clear answers as to whether the truck can be turned up or not without paying them to dyno it and do scans etc... Just wanted to check with you guys before I went that route. Is there any way to get more power out of this truck without the dealer? I called these guys http://www.rochesterfuel.com/products/mack-performance/ the new injectors seem reasonable to get some more power out of it.

×
×
  • Create New...