Just had my 6l80 in my 2019 Yukon rebuilt .98k miles. Wondering if I got taken to the cleaners on the build.

Miami-Dade said:

Back in 2022 I paid 5200 bucks at the GMC dealer. When it comes to transmission issues I only go the GMC-Cheverolet dealer. I even go there for trans fluid changes. But that is just me. My warranty from the dealer for the transmission is for 100K miles.

I am under the impression you took your Yukon to a private transmission shop. Hope it works out okay.

With that said if @NickTransmissions was anywhere near me on the east coast I would have

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Doubeleive said:

price seems fair, but as others noted time will tell, if it makes it a good ways beyond the warranty period then you did alright.
based on the receipt being hand written i would guess it's a old school business and unless you sat down and had a back and forth about what they found was the cause for the problem to begin with and what they typically do repair wise then it's unknown if it's just a basic "rebuild" or if they did all the little fixes that will prevent you from bringing it back anytime soon.
With transmissions it's also worth your time asking questions about the repair process
a shop may quote you 6k and another 4.5k in both cases you should ask questions and make a determination of who you think is going to do it right and give you a good value for your money and who is taking you to the cleaners.
the one that really wants your business is going to take a few minutes to go over it in detail.
the "better" one may even take you out and show you something that typically happens and what steps they take to prevent that from happening again.

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Tusz said:

Thank you for your response. I admit that I made a hasty decision to proceed with the purchase. The establishment is reputable, and my initial conversation with them instilled a sense of confidence. However, I recognize that I could have posed additional inquiries that would have been beneficial. Nevertheless, the transaction has been completed, and I just hope now she last another 100k lol

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Doubeleive said:

Well you have a baseline warranty in writing so you a good to go.
I find it hard to part with hard earned money sometimes so getting the best bang for my money is usually paramount.
it's like buying a microwave, ya you could get one for $99 or you get a better one for $249 that is likely still a bargain, compared to a $1100 one, yet is not a piece of junk.

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Doubeleive said:

Well you have a baseline warranty in writing so you a good to go.
I find it hard to part with hard earned money sometimes so getting the best bang for my money is usually paramount.
it's like buying a microwave, ya you could get one for $99 or you get a better one for $249 that is likely still a bargain, compared to a $1100 one, yet is not a piece of junk.

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Tusz said:

I also am I person who likes to go to the dealer, for some reason I didn’t take it to the dealer this time because most of the posts I seen were people being quoted for 6-8k and the two dealers I called near me couldn’t get me in for 3-4 weeks to look at it . I had to make a move unfortunately.

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Tusz said:

So I got the parts list somewhat from my tech.

Converter is precision. Sonnax 456 kit. Other pistons are acdelco. Borg Warner clutches. Other parts are transgo is what I was told. Also I was told There was no programming done because the thecm didn’t get replaced. Shift adapts were reset. Is this ok that I didn’t get reprogrammed?

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NickTransmissions said:

No programming is fine if TEHCM was reused but I never reuse anything electronic when it comes to transmissions, especially these units...Lots of shops would argue with me, insisting they rarely go bad which is true but think about it like this: what TEHCM (new or one with 100k plus miles on it) is more likely to fail in the near future?

The brand new part or the one with all the miles/age on it?

I feel, as a builder that, If you're going to overhaul the unit, overhaul it completely and not just 80% of the way...Plus, if a brand new TEHCM fails, I can show the customer proof it was replaced and thus the liability/fault passes from me to GM whereas a failure of a used part is on my shoulders since I made the judgement call to reuse it so the customer can save a little money. The Sonnax 4-5-6 piston kit is a good upgrade but I'd have also installed their 1-2-3-4 billet piston as opposed to another GM factory piston...The most recent design is the most reliable but I'd much rather have a billet aluminum part instead of a cast aluminum part installed.

Did they also replace the piston set snap rings in the 3-5-R and 4-5-6 drums? The 3-5-R apply/balance piston snap ring is more prone to failure and if it goes, it usually takes the 1-2-3-4/3-5-R circuit partitioning O-ring with it resulting in 3rd gear starts. Either way, it's something I always replace in those...The 2012 and up 3-5-R drums will accept a spiral-lock snap ring in that location...Wonder if that was installed (assuming your vehicle is 2012 or newer)...

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RobH said:

I paid $6,000 in May, 2023 for a GM reman with a 3 year /100,000 mile warranty good at any GM dealer. Since I travel, the "anywhere" was the decider for me.

I got the HP Tuner package to disable the displacement on Demand (DOD) / Active Fuel Management (AFM) switching back and forth from V8 to V4. Reportedly, that causes more wear on the torque converter clutch as GM allows slippage to mask the slight bump when the engine switches from V8 to V4 and back. Plus, the factory modified lifters used for the switching do not have a good reliability reputation.

I also set the allowed torque converter clutch slippage to 0 RPM. I modified the upshift and downshift points to reduce locked up operation below 1500 RPM in each of the gears.

For what it's worth and your mileage may vary.

There's a thread under my userid on what I did.

HP Tuner for 2016 Tahoe L83/6L80

I want to get the Active Fuel Management (AFM)/Displacement on Demand (DOD) turned off in my 2016 Tahoe. At the moment I am driving with the transmission in M5 which prevents V4 operation. If I operate the transmission in M6, AFM remains disabled in 1st - 5th gears, but in 6th the AFM is...

www.tahoeyukonforum.com

Best wishes and Merry Christmas, everyone. And, Happy Birthday, Jesus.

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RobH said:

I paid $6,000 in May, 2023 for a GM reman with a 3 year /100,000 mile warranty good at any GM dealer. Since I travel, the "anywhere" was the decider for me.

I got the HP Tuner package to disable the displacement on Demand (DOD) / Active Fuel Management (AFM) switching back and forth from V8 to V4. Reportedly, that causes more wear on the torque converter clutch as GM allows slippage to mask the slight bump when the engine switches from V8 to V4 and back. Plus, the factory modified lifters used for the switching do not have a good reliability reputation.

I also set the allowed torque converter clutch slippage to 0 RPM. I modified the upshift and downshift points to reduce locked up operation below 1500 RPM in each of the gears.

For what it's worth and your mileage may vary.

There's a thread under my userid on what I did.

HP Tuner for 2016 Tahoe L83/6L80

I want to get the Active Fuel Management (AFM)/Displacement on Demand (DOD) turned off in my 2016 Tahoe. At the moment I am driving with the transmission in M5 which prevents V4 operation. If I operate the transmission in M6, AFM remains disabled in 1st - 5th gears, but in 6th the AFM is...

www.tahoeyukonforum.com

Best wishes and Merry Christmas, everyone. And, Happy Birthday, Jesus.

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Tusz said:

Thank you for this invaluable input, Nick. The rebuild is complete, and those fortunate enough to have you in their area are truly blessed. Once again, I appreciate your prompt response to my previous inquiry. Wishing you a joyous Christmas.

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