What did you do to your NNBS GMT900 Tahoe/Yukon Today?

[Doubeleive]

Has anyone deleted the forward resonator? if so did it make much difference?

 

[RooTBeeRthe1st]

Has anyone deleted the forward resonator? if so did it make much difference?

There's a forward resonator?

 

[RooTBeeRthe1st]

Well, pretty sure I just sheared the output shaft on the transfer case. No more rear drive. But putting it in four-wheel drive still works perfect driving off the front tires only. Also doesn't make any noise even when turning.

... don't remove too much torque management...

Going to revert a few settings back to stock (or Whipple) in the tune so I don't kill something in the front end before I can fix the current problem with the rear.

Time to go shopping I suppose.
Wonder if anyone has a drop in Atlas 2. That would be pretty sweet.

 

[Doubeleive]

There's a forward resonator?

There is on my 2012 6.2l right about under the front passenger seat area, it is after the cat's

 

[RooTBeeRthe1st]

There is on my 2012 6.2l right about under the front passenger seat area, it is after the cat'sView attachment 355715

thats a 3rd cat

 

[Geotrash]

thats a 3rd cat

California emissions!

 

[Doubeleive]

California emissions!

I don't think it's required for CA. smog it doesn't have a 02 sensor I don't know if they would even notice it missing

 

[Rocket Man]

Well, pretty sure I just sheared the output shaft on the transfer case. No more rear drive. But putting it in four-wheel drive still works perfect driving off the front tires only. Also doesn't make any noise even when turning.

... don't remove too much torque management...

Going to revert a few settings back to stock (or Whipple) in the tune so I don't kill something in the front end before I can fix the current problem with the rear.

Time to go shopping I suppose.
Wonder if anyone has a drop in Atlas 2. That would be pretty sweet.

Differential maybe.

 

[RooTBeeRthe1st]

Differential maybe.

I just figured the diff would have made a lot more noise, like metal getting bashed around inside the pumpkin.



Definitely the diff.

Didn't like the hard & fast 1>2 shifts.
Right rear let out a small bark, then a not very loud metal "ping", but everything still drove fine and I didn't see any fluids leaking.
Drove real nice for a mile or so and then on decell, another "ping".
Drove another mile or so and then accelerated maybe half throttle from a light, and as soon as it tried to go to second, another "ping" and then engine tried to rev straight to the Moon. Barely even made a sound when it let go.

 

[Doubeleive]

I just figured the diff would have made a lot more noise, like metal getting bashed around inside the pumpkin.



Definitely the diff.

Didn't like the hard & fast 1>2 shifts.
Right rear let out a small bark, then a not very loud metal "ping", but everything still drove fine and I didn't see any fluids leaking.
Drove real nice for a mile or so and then on decell, another "ping".
Drove another mile or so and then accelerated maybe half throttle from a light, and as soon as it tried to go to second, another "ping" and then engine tried to rev straight to the Moon. Barely even made a sound when it let go.

time for a eaton detroit, if you can break one of those I give you kudus, most I ever did was wear the bearings out of one, took a couple years of beating on it, new bearings and she was back on the road.

 

[Rocket Man]

I just figured the diff would have made a lot more noise, like metal getting bashed around inside the pumpkin.



Definitely the diff.

Didn't like the hard & fast 1>2 shifts.
Right rear let out a small bark, then a not very loud metal "ping", but everything still drove fine and I didn't see any fluids leaking.
Drove real nice for a mile or so and then on decell, another "ping".
Drove another mile or so and then accelerated maybe half throttle from a light, and as soon as it tried to go to second, another "ping" and then engine tried to rev straight to the Moon. Barely even made a sound when it let go.

I figured it was the weak point. The transfer cases are hard to break, especially an output shaft. If you’re going to remove too much torque management you’ll be needing a new transmission though, built to take it.

 

[the_tool_man]

I figured it was something special by the markings on the road. Must be nice. Around here, the mentality is "All lanes are fair game and I'll do as I please in any of them. If it bothers you, go around. I don't care how many lights or sirens you have".

Here, too, in SC. We FINALLY passed a law against driving slowly in the passing (left-most) lane. But I suspect enforcement will be spotty, at best. I don't think HP has the bandwidth to do much about it, as the fines are too low to incentivize pulling violators over. We'll see.

 

[Rocket Man]

Here, too, in SC. We FINALLY passed a law against driving slowly in the passing (left-most) lane. But I suspect enforcement will be spotty, at best. I don't think HP has the bandwidth to do much about it, as the fines are too low to incentivize pulling violators over. We'll see.

Maybe they’ll do what they do here- pull up behind them and hit their lights and if that doesn’t work, the siren. Of course it only works momentarily most of the time. Sometimes though they stay over.

 

[RooTBeeRthe1st]

I figured it was the weak point. The transfer cases are hard to break, especially an output shaft. If you’re going to remove too much torque management you’ll be needing a new transmission though, built to take it.

Yeah, I tuned the transmission tens of thousands of miles ago, and it's been fun and hasn't seemed to have a problem. But recently I went and changed a few torque management settings and it was shifting hard as hell when wide open which felt good but was too much.

Changed all that back last night.
To the front end got me all the way to work just fine.

Figure I'll be doing a trans down the road... thinking it might not survive long after the Whipple and party pulley go on.

 

[Rocket Man]

Yeah, I tuned the transmission tens of thousands of miles ago, and it's been fun and hasn't seemed to have a problem. But recently I went and changed a few torque management settings and it was shifting hard as hell when wide open which felt good but was too much.

Changed all that back last night.
To the front end got me all the way to work just fine.

Figure I'll be doing a trans down the road... thinking it might not survive long after the Whipple and party pulley go on.

I wouldn’t be driving it with the diff blown up if that’s what you’re doing. There’s broken parts in there rambling around with the input shaft turning.

Did you enable converter lockup at WOT? Probably don’t want that either unless you get a built trans and converter.

 

[Geotrash]

Here, too, in SC. We FINALLY passed a law against driving slowly in the passing (left-most) lane. But I suspect enforcement will be spotty, at best. I don't think HP has the bandwidth to do much about it, as the fines are too low to incentivize pulling violators over. We'll see.

Colorado has such a law and it made absolutely NO difference. There was zero enforcement.

 

[Fless]

Colorado has such a law and it made absolutely NO difference. There was zero enforcement.

^^^ Was just going to say that. People ignore laws that aren't enforced.

 

[mountie]

I drove in Germany..... They will ram you off the road.

 

[Sparksalot]

Here, too, in SC. We FINALLY passed a law against driving slowly in the passing (left-most) lane. But I suspect enforcement will be spotty, at best. I don't think HP has the bandwidth to do much about it, as the fines are too low to incentivize pulling violators over. We'll see.

It’ll be one of the incidental things the law piles on to bump up other fines.

 

[Geotrash]

I drove in Germany..... They will ram you off the road.

One of the things I love most about Germany - lane discipline is absolute.