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transmission

  1. Drivetrain
    Hey, im looking to buy an 08 2500HD silverado, i found one for a good price but it needs a transmission. The current transmission is a automatic but i was wondering if it would be possible to manual swap it if i bought it. i dont know if chevy even offered a manual in 08 but i thought about...
  2. General Discussion
    So I’ve been having this issues for over a year now. Last year a trans fluid line blew and made The tranny slip with no fluid in it, good thing it happened a block from my house. After I fixed it up and re filled it she worked fine for few weeks then it started to get stuck into gear i believe...
  3. Transmission Shop
    Hey guys, looking for some advice on my truck. It is a 06 duramax lbz all stock with the allison automatic 186k miles. Yesterday driving my truck home from work I noticed my truck was shifting later than usual, and at some speeds(right around 32-45) didn't want to shift up into the higher gear...
  4. Transmission Shop
    I just did a fluid, internal filter, external spin on filter, and pan gasket change. When I finished I looked at the old internal filter and realized there was no seal on it, which means it separated and stuck in the hole and I just jammed the new filter with its gasket into the old gasket. I’ve...
  5. Transmission Shop
    I was leaving Taco Bell on Friday, and when I shifted from park to drive, there was a delay, clunk, then immediately “GEAR 4” is displayed on my monitor. I pulled over and ran codes, and saw TCM. I tried clearing them and shut the truck off. Started back up, drove maybe 2ft and then clunk! 4th...
  6. General Discussion
    Hello everyone, i was driving home this morning from work, and i was going up a decently steep hill. i was accelerating pretty hard before i heard a noise and then my truck kinda jerked a little, then my rpms dropped, then started increasing but my transmission wasn’t shifting right away, then i...
  7. General Discussion
    I recently bought an 05 LLY with 250k, owned for about two weeks and I noticed puddles of dexron near the driver side front tire. The strangest part is that it’s not an everyday occurrence. Some days it leaks, some days it doesn’t. Sometimes it’s a decent sized puddle, sometimes it’s a few...
  8. Transmission Shop
    Had this 02 since it was new. It’s got 96,000 miles on it. Mostly pulling hard with hay out of the hay field . Got hot while pulling a 30’ flatbed with 70 hp tractor on it on the highway . Was jerking and it was stuck in high gear . Didn’t check tranny temp . Mechanic reset it and changed...
  9. 911 Problems Forum
    Codes pulled via CTS2: P0088 P0089 P0700 U0106 P0307 P0463 P1093 2004 LLY. Truck doesn’t have a past with me unfortunately. Bought at auction. Truck displays service 4 wheel drive, and water in fuel. Only thing I’m concerned with is the trans right now. Truck goes into drive and reverse very...
  10. 01-04.5 LB7 Duramax Powertrain
    2014 chevy silverado 3500 HD 6.6L Duramax / 6 speed Allison... While getting some brake work done, I was thinking of having the transmission flushed. But the mechanic told me that if it's never been done before, I could have a blown transmission within a week. I guess a flush would clean all...
  11. Drivetrain
    i have a ppe hot race tuner for my 2007.5 lmm. how much power can the stock transmission handle. id like to tune it to level 3 which is 160hp seting. will this cause any problems? also with a 4 in mbrp dp back no muffler and cat and tuned at 90 hp no black smoke out the back...what gives?
  12. Maintenance
    So This is my first post been readin forums here since I invested in a new to me 2007.5 Silverado 3500HD LTZ. it's got just shy of 150K miles on it and since I don't know much of its history I am trying to get all the major maintenance items done before winter.:shock It's my first duramax and...
  13. 01-04.5 LB7 Duramax Powertrain
    Ok, 2003 GMC D/A...on the dash it shows D 3 2 1, but I have counted the shifts many times now and it shifts 5 times. The last shift is at about 55mph and 2k rpms. Also 2nd and 3rd are really close. Is it possible someone has swapped it? How can I tell? Thanks in advance
  14. Transmission Shop
    :confused:Gents- Recently "replaced" the DPF with a nice little piece from diamond eye. Used a thumb stick(?) "DPF-R 4.0" did the reprogram to eliminate regen.... Now, I have a horrible almost scary hestitation almost slipping feeling at 1/4 throttle, through all gears. if I roll into WOT I...
  15. Transmission Shop
    I need help. My 2001 2500 HD has this weird problem and is getting worse. When I stop at a light and 15 seconds later it feels like someone drove into my back bumper,a really strong loud clunk. Also when I roll through a turn and I step on the gas its like in neutral and when the revs come down...
  16. 01-04.5 LB7 Duramax Powertrain
    so i roll from about 60-70k, brake, come to a complete stop at a red light. sit there for a few minutes, go to go over the overpass and onto the offramp. Truck wont move when i let off the brakes. give it gas, finally starts to move probably around 1200-2000rpm? i assume it is ice on the...
  17. 01-04.5 LB7 Duramax Powertrain
    So I have a feeling that my tranny is about to take a dirt nap. Which isn't that cool but it has been throwing some p0700 p0840 p0746 codes and its done that twice as of late. It started leaking fluid, i got that to stop now i can smell tranny fluid when i get out of the truck. Hasnt thrown any...
  18. 06-07 LBZ & LLY Duramax Powertrain
    :help I have an 06 LBZ 2500HD 4X4 extended cab, 59500 mile, Edge jucie with attitude, S&B cold air, MBR turbo back 4inch. About a week ago I was rolling down interstate about 75Mph when what felt like I lost traction and then it grab it and made like a knock/clunk sound (dry Rd). well then today...
  19. Maintenance
    New Here, Thanks to all of you who contribute to this site. It helped me fire up the truck I bought. Now I have a new problem and after running a quick search, I couldn't find anything relevant to my situation. The truck was running fine until I noticed it getting sluggish. The RPMs started...
  20. 06-07 LBZ & LLY Duramax Powertrain
    Hey guys I am having some trouble with my transmission getting too hot. I have a 2006 GMC Sierra 3500 with 140,000 miles on it. 6.6/Allsion. First I was driving home in traffic on a very cold day. I had remote started my truck and it setting idling for a while and I believe at the time I had...
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