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  • Aj Grubb's Avatar
    2 Weeks Ago
    I don't know if it is possible but I would say worst case scenario would be that crankcase vent system getting completely stopped up. This would...
    12 replies | 734 view(s)
  • Aj Grubb's Avatar
    2 Weeks Ago
    Aj Grubb replied to a thread 68RFE Valve Body in Drivetrain
    As far as an Allison being able to survive behind a Cummins, I think a lot of that has to do with the transmission tuning and how hard you plan to...
    29 replies | 1721 view(s)
  • Aj Grubb's Avatar
    2 Weeks Ago
    Aj Grubb replied to a thread 68RFE Valve Body in Drivetrain
    Yeah its a tough call. I guess one could always upgrade the valve body to prevent the cross leaks but still leave the pressure at stock. I thought...
    29 replies | 1721 view(s)
  • Aj Grubb's Avatar
    2 Weeks Ago
    Aj Grubb replied to a thread 68RFE Valve Body in Drivetrain
    Its not a bad idea to upgrade the vale body. The main issue is cross leaks, that lets pressure get to the OD clutch packs when it should not which...
    29 replies | 1721 view(s)
  • Aj Grubb's Avatar
    3 Weeks Ago
    I wouldn't say it was a mistake. The DMAX and the Allison are a solid platform for sure. The EPA has just screwed everything up and I'm not...
    3 replies | 183 view(s)
  • Aj Grubb's Avatar
    3 Weeks Ago
    If you can afford it do the Allison swap. Should be the last time you have to mess with it and it will be a pleasure to drive. Manual swap is...
    2 replies | 178 view(s)
  • Aj Grubb's Avatar
    3 Weeks Ago
    That test is only for opacity.... basically visual smoke and nothing else. It does not test for NOx which is what the EPA mostly has their panties...
    14 replies | 1054 view(s)
  • Aj Grubb's Avatar
    3 Weeks Ago
    Man there is no question that the EPA is coming after private owned diesel pickups and business that modify them right now. You said you do your...
    21 replies | 928 view(s)
  • Aj Grubb's Avatar
    3 Weeks Ago
    I don't know of anyone left in the Dmax world that offers "upgraded sparkplugs" There is Banks and Duramaxtuner.com but I have a feeling they...
    3 replies | 183 view(s)
  • Aj Grubb's Avatar
    3 Weeks Ago
    Aj Grubb replied to a thread 68RFE Valve Body in Drivetrain
    Plus I never change the tune. 30HP at all times and I don't drive the truck like a sports car. So its possible I could get a pretty long life...
    29 replies | 1721 view(s)
  • Aj Grubb's Avatar
    3 Weeks Ago
    Aj Grubb replied to a thread 68RFE Valve Body in Drivetrain
    I have not pulled the trigger on it yet. I'm still bouncing back and forth in my head... Should I spend any time and money on this 68 trying to help...
    29 replies | 1721 view(s)
  • Aj Grubb's Avatar
    4 Weeks Ago
    At the end of the day just leave the CCV system alone. Its not hurting anything. Just service the dang filter every 60k. CCV isn't damaging...
    18 replies | 4052 view(s)
  • Aj Grubb's Avatar
    4 Weeks Ago
    I monitor EGT for obvious reasons. I monitor transmission line pressure because if it starts to vary from what I am used to seeing I know I got...
    11 replies | 475 view(s)
  • Aj Grubb's Avatar
    4 Weeks Ago
    Thats normal. The transmission is keeping the converter unlocked so it will put heat into the fluid.
    8 replies | 270 view(s)
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  1. Hello Aj Grubb, welcome to the community our friend.

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About Aj Grubb

Basic Information

About Aj Grubb
Biography:
36yr old male. Been a professional mechanic since I was 15. Currently maintain a fleet of vehicles for a large electric company. Love mechanical toys and fishing.
Location:
Near Murfreesboro TN
Truck:
2015/ Ram 2500 Tradesman/ Silver/ Deleted and DRD Tuned/ Pusher grid heater delete plate installed

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11-18-2018
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5 Achievements
Achievement Earned on 11-23-2019 01:48 AM
Good job. Your first thread. We like it!
Achievement Earned on 11-23-2019 01:48 AM
Achievement Earned on 11-22-2019 02:43 PM
Still around? Great!
Achievement Earned on 11-22-2019 02:43 PM
Achievement Earned on 12-05-2018 09:47 PM
Nice job! Keep it up!
Achievement Earned on 12-05-2018 09:47 PM
Achievement Earned on 11-21-2018 01:39 PM
Thanks for joining us.
Achievement Earned on 11-21-2018 01:39 PM
Achievement Earned on 11-18-2018 06:01 PM
First award is on us.
Achievement Earned on 11-18-2018 06:01 PM
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