Question about G80 Rear Axle

[2drhoeon4s]

I have a G80 Factory locker axle in my tahoe with the 3.42 gears. I am leary of this axle based on peoples stories..

I want to swap out the locker/gearing and also jump to a 4.10 gear ratio. I have 22s and my tire diameter is about 31". This thing is a pig off of the line.

Is it as easy as swapping the entire locker assembly or is there more? Im trying to avoid swapping out the entire axle.

 

[Yukon John]

Just change the ring and pinion...don't for get the front axle...have to keep them the same.

 

[2drhoeon4s]

gotcha.... any idea what size my axle is? Or how i can find out? I see some 8.5" 8.6" 7.5" etc...

 

[Donnie Yukonie]

8.5