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

[Rocket Man]

SOLVED!

Adjust front diff backlash 2013 Suburban

I haven’t dealt with this yet but I am thinking about it again. I am contemplating dropping the front diff out and adjusting the backlash to see if it quiets up. Bonus if it does. I would only be out $100 and my time. But… There is a part of me that says if the diff is out just install a reman...

www.tahoeyukonforum.com

Awesome job.

 

[Rocket Man]

Finally got the hoe back in the garage.
Motivation building to tear back into the engine...


took a week off at the end of this month, probably will start then.

What’s wrong now?

 

[gooffeyguy]

I thinks it’s for the top end. Off line both are slow, but get into the power band over 25, and 100 is here before you know it.

My 2001 5.3l has 3.73 and it's surprisingly quick. That's with the 4l60 trans, so don't know how those ratios compare to the 6l80

 

[swathdiver]

Anyone know if the K2XX rear suspension/axles fit our gmt900s?

Curious if the 12 bolt 9.76" would swap in.
(Although I'm not going to do that since I already have a 14bolt in hand for a couple hundred bucks whereas those new 12 Bolts are around $2K)

But it did get me thinking...Still semi floating, 33 spline
1/⁴” larger ring gear, less cover bolts

It ought to but they run 1410 u-joints. I would see if their control arms are the same or in the same position.

 

[George B]

Got a P015B code and CEL this morning. Tech2 called out B1S1. Exhaust got stinky too. I did a graph of the sensors and they seem to sweep ok. Fuel trims are ok with LTFT -3 on both banks. I will take a look at that sensor since I was just working in that area the other day. Might be time for a pair of new sensors at 88K...

 

[swathdiver]

My 2001 5.3l has 3.73 and it's surprisingly quick. That's with the 4l60 trans, so don't know how those ratios compare to the 6l80

 

[cmatt]

I was looking for the build sheet on theothertwin, and found this.


View attachment 357315

Nice. Is this something you had or were you able to recreate it from a website?

 

[Sparksalot]

Nice. Is this something you had or were you able to recreate it from a website?

I actually have the hardcopy of it. Along with the manual and the police vehicle supplement.

 

[Just Fishing]

What’s wrong now?

oh same thing, i just gave up for a little while.
took a nice long break and went on vacation, 3 Oktober fests, took the wife out to eat lots, etc.

Now that it's winter and other projects out of the way, I'm ready to dig in and fix this ***** once and for all.

Oh and I also have my fuel tank empty this time.
So i'll probably toss a fuel pump in there, assuming the mood hits me.

 

[Rocket Man]

oh same thing, i just gave up for a little while.
took a nice long break and went on vacation, 3 Oktober fests, took the wife out to eat lots, etc.

Now that it's winter and other projects out of the way, I'm ready to dig in and fix this ***** once and for all.

Oh and I also have my fuel tank empty this time.
So i'll probably toss a fuel pump in there, assuming the mood hits me.

So main bearings or was it just thrust bearings? I thought you replaced them and were all set. Sorry but my email notifications keep quitting and I end up falling behind in my followed threads. Stupid TYF web service.