OEM Big Brakes on 26 AT4 Ultimate?

[1pieceatatime]

Have had my new 26 XL AT4 Ultimate for 2 weeks now, and 1500 mile road trip. Love everything but the brakes… and I intend to tow with it, so looking to install the big brakes from PPV or the civilian option.

However - when I go to the GM Accessories website, no brake upgrade options are listed as fitting a 26 AT4 Ultimate. Anybody know for sure that the GM Part #85138044 actually fits a 2026? The website only says it fits 2021-2024.

 

[Joseph Garcia]

Welcome to the Forum from NH.

Lots of knowledgeable folks here who freely share their knowledge, experiences, and perspectives. Knowledge is power.

I hope that you will become a participating member in the Forum's discussions.

Pics of the truck, please. If we can't see it, it does not exist.

I cannot personally assist you with your issue, but other members of this Forum much more knowledgeable than me in this area will chime in.

If you post the last 8 digits of your VIN, @915_Tahoe may be able to provide you with more information on your question.

 

[ReaperHWK]

Have had my new 26 XL AT4 Ultimate for 2 weeks now, and 1500 mile road trip. Love everything but the brakes… and I intend to tow with it, so looking to install the big brakes from PPV or the civilian option.

However - when I go to the GM Accessories website, no brake upgrade options are listed as fitting a 26 AT4 Ultimate. Anybody know for sure that the GM Part #85138044 actually fits a 2026? The website only says it fits 2021-2024.

https://parts.chevypartspros.com/parts/gm-front-6-piston-brembo-brake-upgrade-system-86560479

 

[1pieceatatime]

https://parts.chevypartspros.com/parts/gm-front-6-piston-brembo-brake-upgrade-system-86560479

Thank you. That site says the same thing - parts don’t fit vehicle - that’s what I was seeing on GM Accessories website.

 

[ReaperHWK]

Thank you. That site says the same thing - parts don’t fit vehicle - that’s what I was seeing on GM Accessories website.

Looks like if you select the Yukon XL it makes a problem. The regular Yukon says it will fit.

Not sure why; if I were you I’d call or go to your local dealer and ask them for a quote to buy the kit and get the paper they give you. That will have the correct PN.

 

[ReaperHWK]

Or you can email tasca they have helped me out before ordering parts with my VIN:

https://www.tascaparts.com/

 

[1pieceatatime]

Awesome, I’ll give them a shout!

 

[915_Tahoe]

Have had my new 26 XL AT4 Ultimate for 2 weeks now, and 1500 mile road trip. Love everything but the brakes… and I intend to tow with it, so looking to install the big brakes from PPV or the civilian option.

However - when I go to the GM Accessories website, no brake upgrade options are listed as fitting a 26 AT4 Ultimate. Anybody know for sure that the GM Part #85138044 actually fits a 2026? The website only says it fits 2021-2024.

Whats the last 8 vin

 

[1pieceatatime]

TR315301