Forum Discussion

Grit_dog's avatar
Grit_dog
Navigator
Apr 05, 2024

Finally! RAM gets a competitive transmission behind the Big C!

Welp, it’s finally happenin. 
The 8 speed Powerline slush boxes are rolling off the assembly line and gettin stocked up to go in the ‘25 model Ram diesels!!!

 

  • They better hold up!  Lol

    No reason to doubt them given ZFs stellar reputation this far with the lighter duty 8HPs that have no been the benchmark slushbox for 10 years running. 
    And they’ve been road testing this thing, starting back in 2017/18 in Ram pickups. Goin on 6-7 years of product development. 
    Well more like 3-4 of development and 2-3 of negotiations.  It was ready to roll when the ‘Rona hit which put a damper on it. 

    • blt2ski's avatar
      blt2ski
      Moderator

      Where is 12V saying he dont need a steekin 8 sp tranny! 

      Marty

      • Grit_dog's avatar
        Grit_dog
        Navigator

        Haha figured his ears would start burnin and he’d show up. Same with Fish to say how bad Dodge is because the plastic dash in his 20 year old abused sun baked farm truck didn’t hold up, so Ram sucks….hahaha. 

        But mostly it was an actual post of a long awaited addition to Rams and consideration to not be they sucker that buys the last of the schitty transmissions just to see the new one come out in 6 months!

  • Calling on cummins12V98  😁

    Now cummins needs to reinforce their latest gen blocks when they went to a weight reduction in '19 and fix their lifter issues and they may have something

     

  • 4x4ord's avatar
    4x4ord
    Explorer III

    The ZF is an amazing transmission which is something to get a little excited about but really unless the Cummins gets a big boost in HP the two more gears isn't going to make it any faster up the hill. Nor is 8 speeds vs 6 going to get the Ram any better fuel economy unless a much higher speed rear end is coupled to that ZF..... a 3.26 final drive would be nice.

    • Grit_dog's avatar
      Grit_dog
      Navigator

      Not sure what you’re getting at. Assuming apples to apples final drives and similar trans efficiency across brands, yup only HP will reasonably make it “faster”. 
      But it does the same thing and same reason the other brands went to 10 speeds (really the same concept for all vehicles). 
      Ability to run higher final drive ratio, like F and GM do, due to ultra low first gear and ability to have closer gear splits. 
      on the top end, you’re not sacrificing a deep OD ratio for the sake of good gear splits. 
      this is not earth shattering info or news, except for Ram who was so late to the table. Not to mention passing off the 68RE to consumers for at least 10 years longer than they should have. And resting on the big C name to sell a million trucks with sub par transmissions.  

      • 4x4ord's avatar
        4x4ord
        Explorer III

        I agree that this ZF is great for Ram guys. What I am getting at with my previous post is that the additional gears alone don’t provide much in the way of fuel economy or speed up a hill. A 3.14 : 1 final drive behind this ZF would provide the same oomph to get a load moving as 4.10 gears behind the Aisin. So, Ram guys need to realize that to get a fuel efficiency benefit they need to select a much higher final drive to go along with the 8 speed. 

        As far as speed up the hill goes,  the HO Cummins won’t benefit from more gears the way an engine like the Duramax does because he HO Cummins  makes very similar HP at 2000 rpm as it does at 2800 rpm. Unless Cummins bumps its power rating up, a 4.10 equipped 6 speed behind the Cummins is going to pull a hill very similar to a 4.10 equipped 8 speed up that same hill.