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  1. stutaeng

    I need to buy a scope...

    Does anyone use one? I thought the vintage Snap On Vantage Pro has one? I looked and can't seem to find one locally or eBay. I'm thinking if getting the Autel Maxiscope. I don't know anything about them, have just have seen them being used for diagnostics... relatively compression test...
  2. stutaeng

    What to do if your brakes fail?

    Once upon a time my mechanic reworked something on my 1500 Silverado and left the brake hose too relaxed, rubbing on the inner side of the wheel and melting it. I had just left work, and was able to stop at the first stop after having pedal go to the floor. I was able to pull into into a Home...
  3. stutaeng

    HP tuners newbie question - can't Read Vehicle

    Hi guys, I hope someone here can help me: I'm finally getting to actually mess with HP tuners. I opened the VCM Scanner and got readings and graphs with engine running. But on the VCM Editor my "Read Vehicle" icon is grayed out. I tried with key on/engine off and with engine running. I have...
  4. stutaeng

    What's a good vehicle for off-road?

    Not sure if this the right subforum.... I'd like to get into mild/moderate off-road trail riding in the next few years to take my little kids as they get older. I realize not a lot of off-road build guys here, and I don't really know anything about all of the technicalities related to off-road...
  5. stutaeng

    4 pinion planet BETTER than 5 pinion planet?

    Another misconception seems to be busted: It looks like from reading some other forums that the 4 pinion planetary gearsets of these units are actually better than 5 pinion planetary gearsets. Reason being the materials of the 5 pinion is actually of lower quality than the 4 pinion. I would of...
  6. stutaeng

    Fascinating read from a former GM Hydramatic engineer

    https://ls1tech.com/forums/automatic-transmission/1938559-can-i-get-my-6l80e-shift-like-my-4l60e.html I rode with a coworker that drives a 2017-ish Silverado 1500 and noticed his tranny does a weird clunk about 50% of the time right before coming to a stop. Like a hard downshift or something...
  7. stutaeng

    Rebuilding an engine - what precision instruments to do measurements

    I bought this LQ9 (flat pistons) many years ago to do a swap, and long story short, it had a front main spun...I didn't really have a clue back then on anything mechanics related. It sat in my backyard for a long time, and last Fall I finally tore into and the cam looked okay, as well as the...
  8. stutaeng

    PWM Question

    I was talking to my brother the other day about his 90 RCSB and he mentioned something about TC locking up/rpm drop. I honestly can't say that I know when the TC locks on all the trucks that I've owned, but they have all been "E" tranmissions. Last I drove Dad's 89 Sierra was like 20 years ago...
  9. stutaeng

    GMT 800 front brake upgrade to GMT400 8 lug

    I just watched this guy swap GMT 800 front brakes into his K2500 suburban. I honestly didn't realize it was that difficult.... Towards the end he mentions a hydroboost master cylinder upgrade from the big, heavy 10 lug 3500HD GVWR 15,000 trucks. I may decide to do this to my K3500 beater, LOL...
  10. stutaeng

    700R4 TV holddown bolt broke

    So my brother has a C1500 and he told me he was trying to adjust his tv cable and the bolt that holds down the clamp on the passenger side snapped off. It's on the topside of the pan, and pretty tight in there against the trans. tunnel and next to the servo... Do you guys I think that if we...
  11. stutaeng

    4L80e fluid change

    I need to change the trannie fluid on my truck. I was going to drop the pan/fluid leave it overnight and change filter and put new fluid the next day. I know that doesn't get all of it out, but figure I can at least dilute the old fluid out with new one. "The solution to pollution is dilution."...
  12. stutaeng

    Damn you Monroe!

    So my DD 06 Suburban needed new shocks. I generally don't really pay much attention to shocks to be honest. I go to RA and select some from the their Heavy Duty category, some Monroe 34694s. They don't have matching yellow Monroe for the front so the next best option is Gabriel 58817...about...
  13. stutaeng

    Let's talk Torque Converters...quality

    Ok guys, I'm going to embark on rebuilding a 4L80e. They recommend you replace the torque converter as well due to the clutches being sort of a wear item, and you can't even inspect them. I'm going for a stock rebuild with a stock stall speed. Locally, I can get this remanufactured one...
  14. stutaeng

    Locker for AAM 9.25"?

    I was talking to my brother that has a 2013 Ram 2500 4x4 about front lockers. I looked up the ARB air locker and it looks like it's also compatible with the GM AAM 9.25" from 88-12 trucks (IFS vs SFA)? I've got an 'ol 2000 K3500 that I rarely use on 4x4, until this snow storm that is! I've...
  15. stutaeng

    Lets's talk Corrosion, a.k.a. Rust!

    I went to the junkyard over the weekend to look for some parts. Found the truck I needed and started pulling things and when I went underneath I was shocked to see how badly corroded it was! I have seen guys on YT videos from up North, but I had never seen it in person. Dang! That truck was not...
  16. stutaeng

    4L80e delayed shift into D, stalls engine

    Hi guys, I've noticed my 00 K3500 wants to stall when I leave my driveway. I've let it warm up to closed loop and my scanner reads around 190F, but no difference. So I put into R or D and it wants to stall and there's a slight delay. Almost feels like a manual transmission with clutch...
  17. stutaeng

    '99 Silverado 4.3 to 5.3 Swap with 4L80e bonus

    Hello, finally starting on my 99 Silverado ECSB 1500 2wd 4.3/4L60e/3.42 NBS. I've had it since my college years and has been pretty reliable, but has had very low oil pressure and the tranny is acting up. No money for a engine/tranny rebuild, but would like to put some life back into it. Finally...
  18. stutaeng

    OEM mufflers?!

    Hey guys, I hope someone can help me. I've got a GMT800 2500 Suburban with the 6.0. The P.O. installed some Flowmasters. The muffler has 2 inlets and 2 outlets. It sounds kinda cool, but it's driving me nuts! I'm used to factory sound. Does anyone know where I can find the factory muffler...
  19. stutaeng

    Does a axle re-gear require a ECU tune?

    I had never wondered this until today. Will go from 3.42 to 4.10s, after swapping 4.3 to 5.3/4L80e. The 5.3 came with it's own ECU and need to get VATS deleted, and reflashed for the 80e. Would like to do the reflash/reprogram all at once if rear ratio needs to go into the ECU. I don't know...
  20. stutaeng

    4L80e early design comparability

    Does anyone know if the early design of these work on a '99-'00 vortec 5.7? I will be running stock ECU, likey from an Express Van or '00 truck. May do an 0411 ECU down the road if it matters. Transmission in question is '95.
  21. stutaeng

    8.1/Allison swap in K3500?

    Hi guys, I just bought a complete 8.1 engine with a 2wd Allison/ECU out of an '04 2500 HD to swap into my 3500. My '00 K3500 CCLB currently has a 5.7, and engine and transmission run fine. I was actually looking for an engine for my '99 Silverado ECSB 4.3 to do a swap, but then came across this...
  22. stutaeng

    K3500 Speedo reads too slow.

    Hi guys. So my '00 K3500 CCLB speedometer needs to read 77 MPH in order to be going 70 MPH on phone's GPS. My tires are LT265/75/R16 over the stock LT245/75/R16 and the RPO code shows 4.10s. I was driving the other day with my brother and he pointed that out, but didn't think much of it. Well...
  23. stutaeng

    Anyone know what engine are in these buses?

    Chevy Express cutaway buses operated by Dallas Area Rapid Transit (DART.) https://www.wikiwand.com/en/Dallas_Area_Rapid_Transit Likely operated by many others. I see these circle all day from my window, every 15-20 minutes. Seems I see drivers repeat every 1 hour or so, so likely a 30 mile...
  24. stutaeng

    Torsion bar factory setup?

    Hey guys, can anyone direct me to the source of the factory torsion bar set up for GMT-400 trucks? Namely, the "Z" dimension. I'm going to be rebuilding the front end of my K3500 soon. Is the setup the same for all the K-series? I've got the forged LCA if it matters. The Haynes manual has a...
  25. stutaeng

    K3500 SRW to DRW leaf springs?

    Hello, does anyone know what is the difference between SRW and DRW leaf springs in these trucks? I have a '00 K3500 CCLB and has 6 leafs on the pack with the bottom-most leaf being really thick. Did the DRW have an extra leaf or overload spring? Not trying to increase numbers, just would like...

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