Technically, a tuner voids the warranty.

The G80 in the 9.5" 14 bolt doesn't go boom. It's very stout. It happens in the 8.5" 10 bolts occasionally though.

If I were changing gears, I'd just buy Motives for about $200. I've used them many times in the past, with good luck. The noise usually comes from improper setup. The pinion depth has to be set perfectly, or it will whine.

 

I was getting 19 to 21you on the highway and 12 in the city playing around

 

AAM is OEM so thats the route id go.. i have 260,000 miles on mine and they are still quiet

 

OEM for the win. Go AAM.

Also, ANY dealer can tell if you currently have an aftermarket tune. You currently have an aftermarket tune (a shitty canned tune is still a tune) so they will void your powertrain warranty if they find out (which they will if they hook up a Tech2). The debate is whether they can see whether there was a tune after the factory tune has been reloaded; all the evidence I have seen says they can't on our trucks, but they will see flash history on the next generation.

 

I would leave the G80 alone

 

probably i will go back to 373's or Im going to buy another truck for my long trips.

 

I use the value gears from Rons Machine Service. I have 4.56's. They are quiet as can be. My break in procedure consisted of driving off the lift, pulling out into the street, doing a burnout and making a pass I've made many many passes and they're still quiet as can be. Setup definitely plays a big part in noise reduction

 

That's awesome

 

I wish I could have ordered 4.10s in the first place

 

Oem x2