Need help picking ATF for 2013 Yukon XL 1500 SLT

[donjetman]

That's a fancy multi disk in the vid, factory converters have just a single sided lockup clutch friction.
That's what I have in my image.
The rest of the converter has more, looking like that converter for the most part.

0:00 to 4:10 in the video is about a stock single 4L60 torque converter.
at 2:50 in the video he talks about the single clutch surface.

The second converter he talks about is a triple for a dodge diesel truck

 

[j91z28d1]

For instance,
View attachment 430607
View attachment 430608

all good, I was supprised it's like a cross hash looking material, with like no wear on it and it's on the other side from the one in the video. now that could just be tranny designs.


interesting stuff. I've not seen before.

 

[Just Fishing]

all good, I was supprised it's like a cross hash looking material, with like no wear on it and it's on the other side from the one in the video. now that could just be tranny designs.


interesting stuff. I've not seen before.

supposed to be a carbon fiber or something along those lines.
Long life for the amount of slip the design allows for.

 

[KC 2013 Tahoe]

Here's a good article regarding the time-bomb JMBX torque converters (TC) GM put in all our vehicles with the 6L80 Trans:

Gears Magazine - Flex & Bend - A Look at the 6L80/90 JMBX Torque Converter

The GM 6L series transmission is quickly becoming the most popular attraction in the shop. As we all know, this unit is plagued by a handful of common issues, such as pressure switch filament cracking, 35R drum breakage, 1234 piston cracks, valve/bore wear, and converter failures. The drum...

gearsmagazine.com

The TC in our '13 Tahoe (w/5.3 Flex) shredded itself through the transmission at ~120K miles two years ago. A good $5500 to have it rebuilt, complete with a better Sonnax TC. It's my wife's daily driver, so don't need any monster TC.

Had never heard of this problem until I researched it. It surely looks like most any 6L80/90 equipped GM vehicle with more than 100K and the original converter should have the TC replaced to prevent an otherwise good transmission from being destroyed.

 

[gooffeyguy]

Uh oh, I'm at 147k

 

[Grady_Wilson]

Uh oh, I'm at 147k

Mine has 132k.

Looks like I will be doing mine when I get to WY.

 

[blondie70]

mine has 199k. Dead man walking !