New but old

[yukondoeet]

Hello all. I'm new here and first time GMC owner. Bought my 2015 Yukon SLE 4WD in late 2024 and it is by far my favorite vehicle in my 40+ years of driving. First thing I did was upgrade the transmission thermal bypass(6L80), alternator and switched headlights to LED bulbage.

 

[tuckerrnr1]

Welcome from Florida. Solid upgrades already.

 

[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.

 

[GMCnewbee]

Welcome from Orlando

 

[OR VietVet]

Welcome to the forum, from Oregon

 

[Miami-Dade]

Welcome from Miami&NYC!

 

[sam05]

I'm new to the 6L80 Transmission. What is this mod: "upgrade the transmission thermal bypass"?