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  1. 07.5 - 09 3rd Gen 6.7L Powertrain
    Just completed full rebuild. Stupid me didn't replace solenoid pack nor the metal gasket in between the valve body. I'm a tech myself first time doing a 68 but done many others Replaced all clutches, pistons, seals etc. Installed transgo shift kit. Installed transgo TC limit valve bushing and...
  2. 2013-2018 Powertrain
    I have a 2017 ram 3500 4x4 with the 68rfe in it. I got the low line pressure code I forgot the actual number but it started to not shift past 4th gear. I replaced the pressure sensor and boom worked perfect for 1 day. The very next day I went out to eat and on the way back it wouldn't shift past...
  3. 2013-2018 General Discussion
    So to preface this I have had this truck for about 2 1/2 years now bought it from a dealership in Ohio, but truck was originally from Florida I believe. Got it delivered sight unseen with 141k miles and it just broke 152k. Truck is entirely stock as I'm writing this however I have a Calibrated...
  4. 07.5 - 09 3rd Gen 6.7L Powertrain
    Hello everyone. So i was rebuilding a transmision for a buddy and while driving the transmission was fine at first and when it reached 180 going uphill the whole time, and once we reached flat road i realized the tranny shifts from first to fourth and when i try shifting up or down nothing...
  5. 2010-2012 Powertrain
    Has anyone else had a problem with cruise control going WOT and blowing out 5th-6th gear clutch? Twice within a month now and it's getting expensive. Truck is 2010 mega cab on 35x12.5 22 First time it was while towing my 5th wheel figured it was my fault from having the SOTF knob on 5 coming...
  6. 2010-2012 Powertrain
    Hello, I've tried the search function but can't find the specific info. I've recently installed a protect68 kit, following every single step in the manual torquing the bolts down and quadruple checking them just trying to be really careful with everything I do in there. Now the transmission was...
  7. 2013-2018 Powertrain
    Hey friends, Plain and simple... But maybe not. I'm currently driving across provinces, just outside of the Rockies. I decided to head up a mountain today with my 30fter (huge mistake, didn't research the route) to go on a hike and long story short I brought my trans up to a whopping 260f...
  8. 07.5 - 09 3rd Gen 6.7L Powertrain
    Ok, so I have a 2008 dodge ram 2500 set 6.7 and got rid of the 68rfe and put in the g56. I about have everything squared away, even wired the nuetral safety wire to ground, only the truck wont start. I haven't flashed the ecm yet because I figured I could drive it to the dealer to have them do...
  9. 2019+ Powertrain
    I have a 2019 2500 Limited. She has about 32k on her and she has been “taken to Mexico”. Love everything about it but just like any Cummins with the fun goodies the trans has decided to retire early! I knew it was bound to happen but maybe not this soon lol. The transmission acts weird all...
  10. 2010-2012 Powertrain
    I am brand new to the group but have had my 2018 4th gen a few years now. I was looking for a search bar because I imagine this topic has been discussed many times. Anyway what I have going on is that sometimes the truck seems to grab hard into either 3rd or 4th gear I am really not sure which...
  11. 07.5 - 09 3rd Gen 6.7L Powertrain
    2007.5 2500 6.7 with 68rfe. Started on a cold morning. Started the truck noticed when I put it in Drive it took about 3 seconds before I felt it. Same thing for reverse. This has never happened before. I took off from my house and noticed it was going back and fourth between 3rd and fourth...
  12. 07.5 - 09 3rd Gen 6.7L Powertrain
    Little background of the truck, 08 6.7 cclb 90k miles with stock fuel and air (deleted and tunes/trans tuning) and 425s. So bought the truck about 6 months ago with 80k noticed in reverse it had a very low idle but never thought anything of it, then driving home from work one day I was in a rush...
  13. 07.5 - 09 3rd Gen 6.7L Non-Powertrain
    since the day I purchased this truck the over drive button and the gear selector buttons have never worked. i never thought it was a big deal until just recently when i had my transmission built by Randy's. To keep my transmission covered under warranty I have to do a quick learn. obviously im...
  14. 2010-2012 Powertrain
    3 weeks after getting my 68rfe transmission rebuilt and reinstalled maybe 1500 miles on it since the rebuild.. I was driving down the highway doing 70 mph and boom my t case completely exploded.. im sure it destroyed the transmission also that I just had rebuilt.. heard it could be the cardono...
  15. 2010-2012 Powertrain
    So I’ve got some shifting issues with my 2013 2500 with the 68RFE (go figure). I’ve been doing lots of research and asking around and haven’t been able to figure out what’s going on. Whenever I shift into drive, it takes about 3-4 seconds. Also, when I downshift it takes longer than the process...
  16. 07.5 - 09 3rd Gen 6.7L Powertrain
    Im slipping in 5th and 6th. Shifts perfectly 1-4 but hesitates to grab 5th. If I lightly let it shift into 5-6 it will go. But once I put throttle on it they slip and go back to 4th. I replaced the VB with revmax last year. I'm curious if my overdrive clutches are done or if it could be anything...
  17. 07.5 - 09 3rd Gen 6.7L Powertrain
    So I am at a loss with my 2008 6.7 with the 68rfe. It has been in the shop more than it has been home the past 2 years with transmission issue's. I had H&S tuning with trans tuning back with the factory transmission and made it to 210,000 miles without a single problem. I do not race or abuse...
  18. 2010-2012 Powertrain
    Just recently joined the Cummins family by buying a 2013 2500. It’s been downshifting pretty weird on one of the CTT tunes I’d been running and seen people posting their CVI numbers along with the torque converter slip rpms from ez lynk. Just installed another tune and going through the drive...
  19. 2019+ General Discussion
    So, in 2020 my Laramie had to have the 68RFE transmission replaced (15000 miles). 1 month ago, at 25k miles, I had just started out on my 2nd trip with our camper (weighs 7500 lbs) and the truck lost all power, a huge puff of white smoke billowed from exhaust. I was able to store camper and limp...
  20. 07.5-09 3rd Gen 6.7L Performance Parts Discussion
    I took my 08 mega cab that has a custom built sun coast 68 rfe Transmission with a sun coast torque converter to a dodge dealership to have new filters and complete flush of transmission fluid. I told them at the time it all custom I want to have it preform correctly due to my neck surgery I was...
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