Is 8-speed transmission now good?

[Interleukin6]

My 2019 4.3L with 6-speed transmission was a total loss last week. I need a new (Custom trim). Now only see 2.7T paired with 8-speed transmission. As far as I know, GM 8-speed transmission has been infamous, facing class action lawsuit. Is this only affecting to ~2019 model year or current model too? 2.7T also reliable? Thank you. 

[f8l vnm]

25 minutes ago, Interleukin6 said:

My 2019 4.3L with 6-speed transmission was a total loss last week. I need a new (Custom trim). Now only see 2.7T paired with 8-speed transmission. As far as I know, GM 8-speed transmission has been infamous, facing class action lawsuit. Is this only affecting to ~2019 model year or current model too? 2.7T also reliable? Thank you. 

The latest 8 speeds have been pretty damn good.  I think you will be pleased.  

Your also going from a 4.3 to a 2.7T so you will make more power and more power torque every where in the power band. 

[lebag335]

The 8 speed in my '20 GMC AT4 w/ 5.3 has been excellent.  Zero issues.

[newdude]

Is it a 2022 refresh or 2022 LTD?  I do know the refresh, because of the added power with the 2.7 HO, they re-tuned the shift points on the 8 speed.  So far mine has been great.  

Edited July 7, 2022 by newdude

[SilveradoRST]

11 minutes ago, newdude said:

Is it a 2022 refresh or 2022 LTD?  I do know the refresh, because of the added power with the 2.7 HO, they re-tuned the shift points on the 8 speed.  So far mine has been great.  

Did GM eliminate that first shift of the day clunk or slip (not sure what the right terminology is) in the 2022 refresh 8 speed?

 

My 2019 8 speed has been great as well with the exception of the first shift of the day.   Known thing.   No biggie.  

Edited July 7, 2022 by SilveradoRST

[Street Queen]

My 8 speed 2019 RST was fantastic and had no problems. The handling was sporty and it was faster off the line than my 2022 TB.

[f8l vnm]

You guys remember the ole K2 clunk when coming to a stop ?  lol 

[newdude]

39 minutes ago, SilveradoRST said:

Did GM eliminate that first shift of the day clunk or slip (not sure what the right terminology is) in the 2022 refresh 8 speed?

 

My 2019 8 speed has been great as well with the exception of the first shift of the day.   Known thing.   No biggie.  

 

 

Mine has yet to do it.  2280mi.

[pokismoki]

have you looked at the Tundra yet? are there any on the lots?

[4banger]

I’m at 2100 kms on 22 refresh 2.7 custom and transmission has been awesome. Go for it!

[SilveradoRST]

4 hours ago, newdude said:

 

 

Mine has yet to do it.  2280mi.

Wonder if they "fixed" it somehow.  Great to hear.  Maybe a 2.7 is in my future.

[Silverado4x4]

My 2019 8 speed has been great since they changed it to the updated fluid, no complaint's.

Edited July 7, 2022 by Silverado4x4

[seamus2154]

I had two 8 speeds. First one needed a converter, never an issue after that. second one was fantastic. Great for towing, good trans IMHO. I always felt it was a programming issue. 

[silveradosid]

my 2020 with the 8 speed has been flawless currently at 38k miles

[ESierra]

20' 2.7T with the 8 speed here. No problems. I have a lift and slightly big tires handles it really well.