Got a 2013 CC SLT Z71 with ls7 lifters, cam, pro-flow intake, BW S400-74, a2a, dual meth, PTC triple disc converter, century built 6l80E, and big fuel system.. I'm sick of keeping boost down to 12 psi and having to freshen the trans every time I turn around.. So it's time for a 4L80E, atlas TC, fab 9 rear with 35 splines, cal-trac type setup with afco coil overs.. Just not sure what to do on the front end.. Currently it's just leveled on 22's and 33's.. I don't want to change the hight.. Just need a setup that'll handle A LOT of power..
Thanks

 

You're the only guy I have heard of that has problems with the 6l80e. As far as the solid axle swap. You'll pretty much have to fab one up your self.

 

Got less the 2k miles on the first build and 5k on the second build.. So I'm babying it tell I can get something else figured out..

 

The 6l80 is a pretty good trans. How much power r u puttin down

 

Made 500/535 on 8 lbs on 22's and 33's, but I run 12 lbs.. So I'd guess 580-600 ish..

 

Tires are probably killing it. I know I guy that's making 700rwhp on a stock 6l80e (street tires). I know another guy that makes around 450rwhp on 35s and goes through them like candy.

Either way post up some pics of your truck. I love fast lifted 4x4s

 

6L80e are super tune sensitive.
Who is tuning it?

 

It's a Century trans tune..


8.5 psi cam only - YouTube

 

Man I'm making prob around 650+ right now and still on a stock 6l80... Thats because I have been through a turbo 5.3/nitrous setup, 6.2 turbo setup and now my 427 lsx setup and haven't had any issues. I have raced and 4 high launched this truck every weekend damn near since day one. Think you need someone else to tune the trans as like said above its all in the tune. By the way I'm on 22s too with 305/40 tires about a 31 on 3.08 gears so don't think your truck is under much more stress then what mine has seen.

 

I agree with the trans tune. U shouldnt be havin those kinde of problems