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  1. M

    New gen FASS pumps: 100 vs 165

    Is FASS demand flow? I went with the AD 165 because of the demand flow feature on a 2004 LB7. I thought I read FASS was a constant delivery? Sent from my iPad using Tapatalk
  2. M

    100k miles, internal filter change?

    We just did the external filter and drained the pan. Little over 7qts total. Used a DexIII fluid as that’s what was in there. Not going for extended drain intervals, 50k miles is plenty especially for no towing or hauling. Used the new PPE long filter. There was virtually nothing in the spin...
  3. M

    100k miles, internal filter change?

    Thank you folks Going down the rabbit hole I found this. https://www.allisontransmission.com/docs/default-source/default-document-library/st1099-rev-w.pdf?sfvrsn=41bff41d_0 Appendix A gives the official word. This doc is January of 2021 so it is current. Sent from my iPhone using Tapatalk
  4. M

    100k miles, internal filter change?

    For the life of me I cannot find a straight answer. 2004 GMC2500HD with 100k miles. Doing all the fluids since I don’t have a good history on the truck. Is it necessary to drop the pan on the transmission and change the internal filter or just drain and change the spin on? I see some folks say...
  5. M

    In need of new tires

    My boy has general grabber AT2s(305/50R20) on his truck. I am surprised on how quiet they are and how well they grip in snow and rain. They are better than the stock KO2s on my Raptor. Sent from my iPhone using Tapatalk
  6. M

    Oil bypass question

    Appreciate that. Sent from my iPhone using Tapatalk
  7. M

    Oil bypass question

    Is there any real benefit to doing a bypass filter system? Sent from my iPhone using Tapatalk
  8. M

    2004 LB7 pump rub

    Roger that. Thank you. Sent from my iPad using Tapatalk
  9. M

    2004 LB7 pump rub

    Is the transfer case pump rub one of those things that will eventually happen or is it hit or miss. Trying to prioritize some of the preventative stuff to do to my boys 2004 GMC 2500HD before he heads off to college. Sent from my iPhone using Tapatalk
  10. M

    Best shocks for the money

    Bilisteins 5100 only fit lifted/level trucks? Fox has that stupid 50k mile overhaul “requirement” too Thinking of swapping out my boys GMC 2500HD with 2.5” fox shocks. Sent from my iPhone using Tapatalk
  11. M

    Waste Gate?

    No wastegate. Variable vane turbo. I believe the LB7 is the only engine with a wastegate. Sent from my iPhone using Tapatalk
  12. M

    Aftermarket head unit disables compass/ temperature display?

    We just put this one in my sons 2004 GMC 2500 https://www.crutchfield.com/p_105KWM56BT/JVC-KW-M56BT.html CarPlay works great. Easy install. Only real con is the screen is a bit bright, even on dim, at night. Sent from my iPhone using Tapatalk
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