[stides777]

Has anyone heard of someone replacing their 4-speed auto trans with a 6-speed auto on a 5.3L GMC or Chevy Truck/SUV? Just curious if this has been done before. When my transmission dies I would like to look at doing this conversion if it's not cost prohibitive.

 

[Hit Man X]

Not yet, the 6L90E is too new on the market.

Also, the control system of it is based off a CanBus system... that is around an '03+ setup. So, we'll just have to wait and see.

 

[Forklift]

actually the canbus is 07 on the trucks and suvs. Databus on the 03+

 

[Hit Man X]

actually the canbus is 07 on the trucks and suvs. Databus on the 03+

Ah, there ya go.

 

[Tony Two-Tone]

Yeah, the only problem would be the electronics, but that would be badass if somone found a way to make it work.