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

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Tusz

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Wondering if this was a fair price, I know I could of went with an OEM GM but didn’t want to put the same one with the known issues back in it so that’s why I thought a rebuild was better with a billet converter. Appreciate your input in advanced!
 

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Miami-Dade

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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 went there.
 

NickTransmissions

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Wondering if this was a fair price, I know I could of went with an OEM GM but didn’t want to put the same one with the known issues back in it so that’s why I thought a rebuild was better with a billet converter. Appreciate your input in advanced!
Fair is a relative term as what you paid represents what you were willing to pay for the job so in this case what you paid is fair based on that definition...So now it boils down to what you actually got in return to determine if the job was done right in terms of parts selection and build strategy...Refer to page 1 of this thread for the parts list that I always use in my 6L80 rebuilds and compare that list to what was installed into your transmission to see if the lists align...If there's significant differences, I'd want to know what they are and perhaps why things were done differently (some shops may simply use different parts or have other, different/better approaches to solving for the same problems).

Does the price, as shown on their invoice, include removal and reinstallation or is that just for the transmission. If it was just for rebuilding the transmission and doesn't include R/R and TEHCM reprogramming then it's broadly consistent with my pricing for a stock level build with all the requisite part updates and hydraulic corrections/improvements installed. If it included R/R and reprogramming, I'd want an itemized list of exactly what parts were installed and procedures performed (note - it's highly unlikely you will actually get this as most shops don't provide that level of detail on their work orders to customers).
 

Joseph Garcia

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I think that the price is attractive, but as @NickTransmissions stated, we don't know specifically what you got for that price. I was recently quoted $5,000 for a new GM 6180 plus R/R and TECHM programming.
 
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Tusz

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Fair is a relative term as what you paid represents what you were willing to pay for the job so in this case what you paid is fair based on that definition...So now it boils down to what you actually got in return to determine if the job was done right in terms of parts selection and build strategy...Refer to page 1 of this thread for the parts list that I always use in my 6L80 rebuilds and compare that list to what was installed into your transmission to see if the lists align...If there's significant differences, I'd want to know what they are and perhaps why things were done differently (some shops may simply use different parts or have other, different/better approaches to solving for the same problems).

Does the price, as shown on their invoice, include removal and reinstallation or is that just for the transmission. If it was just for rebuilding the transmission and doesn't include R/R and TEHCM reprogramming then it's broadly consistent with my pricing for a stock level build with all the requisite part updates and hydraulic corrections/improvements installed. If it included R/R and reprogramming, I'd want an itemized list of exactly what parts were installed and procedures performed (note - it's highly unlikely you will actually get this as most shops don't provide that level of detail on their work orders to customers).

Thanks for the response. Yes not very detailed on the invoice. Also not sure if I liked that I got a “reman” converter for an overhaul. But Im pretty green when it comes to transmissions…..this price is a removal and reinstallation.
 
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Tusz

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Fair is a relative term as what you paid represents what you were willing to pay for the job so in this case what you paid is fair based on that definition...So now it boils down to what you actually got in return to determine if the job was done right in terms of parts selection and build strategy...Refer to page 1 of this thread for the parts list that I always use in my 6L80 rebuilds and compare that list to what was installed into your transmission to see if the lists align...If there's significant differences, I'd want to know what they are and perhaps why things were done differently (some shops may simply use different parts or have other, different/better approaches to solving for the same problems).

Does the price, as shown on their invoice, include removal and reinstallation or is that just for the transmission. If it was just for rebuilding the transmission and doesn't include R/R and TEHCM reprogramming then it's broadly consistent with my pricing for a stock level build with all the requisite part updates and hydraulic corrections/improvements installed. If it included R/R and reprogramming, I'd want an itemized list of exactly what parts were installed and procedures performed (note - it's highly unlikely you will actually get this as most shops don't provide that level of detail on their work orders to customers).
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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Doubeleive

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Thanks for the response. Yes not very detailed on the invoice. Also not sure if I liked that I got a “reman” converter for an overhaul. But Im pretty green when it comes to transmissions…..this price is a removal and reinstallation. And as far as reprogramming I wasn’t sure what “shift correction” meant I was thinking maybe reprogramming.
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.
 

Trey Hardy

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Wondering if this was a fair price, I know I could of went with an OEM GM but didn’t want to put the same one with the known issues back in it so that’s why I thought a rebuild was better with a billet converter. Appreciate your input in advanced!
Seems fair my last 4l60 for a remanufactured one with a billet converter was about 4400$
 
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Tusz

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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

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.
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
 

Doubeleive

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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
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

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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.

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.
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.
 

Doubeleive

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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.
a good rebuild "should" be bulletproof, paying more for a rebuilt one from the dealer likely did not have any additional benefit
reason being the dealer transmission is not going to have the "fixes" that a outside party will do. dealer rebuild is they put it back to stock and send it.
 

NickTransmissions

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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?
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)...
 

RobH

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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. :)

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

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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)...
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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Tusz

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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. :)

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

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. :)

Best wishes and Merry Christmas, everyone. And, Happy Birthday, Jesus.
It appears that you successfully got a great transmission rebuild. I have come to the realization that I wish I had opted for that route, as I was two to three weeks away from having to seek an inspection from General Motors. But I couldn’t wait. Once a decision is made, it is essential to move forward. Thank you for the response and merry Christmas.
 

NickTransmissions

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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.
Thanks man - same to you and your family as well!
 

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