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

[wjburken]

Agree 100% with not having a spare if it’s not the same size as the rest. As you said, that’s a great way to shell out your drive train. That’s not what I was commenting on.

I won’t replace just one tire on my Denali if I can’t find one with the same amount of wear on it as the rest. I’d rather buy a full set and not risk damage.

I looked at a 2011 Escalade ESV last month that a dealer in Palatine, IL had for sale and noticed that the rear tires had about 5/32 left on them and brand new tires on the front. Told them they are setting up the next buyer for some issues if they leave it that way.

 

[R3cord303]

The fact that its 100 pounds out of the vehicle doesnt matter as much as its 100 pounds out of what part of the vehicle. Taking 100 pounds off the top of the vehicle is going to make a bigger difference than 100 pounds off the bottom. Weight added or removed from outside of the axles vs in between the axles will also impact how the vehicle feels.

 

[wjburken]

Can’t say for the suburbans but the tahoes are ~5400 pounds for the 4wd models. That said on more suburban streets I can see people not being able to notice, and not everybody drives like I do. I’ve never been one to be afraid of a corner because sense the day I got my licence I’ve been back and fourth from the coast to the valley going over the pass and thru the twisties- so i’ll pretty much set the cruise at 62 and go for it.

Fair enough, however you haven’t driven with my wife. I had to get rid of our ‘09 Suburban LTZ because she thought the 5.3 was a gutless wonder. I bought it to get us by while I rebuilt the motor in our ‘07 XL Denali so when it was back up and running instead of keeping the ‘09 Suburban with 125K, we kept the ‘07 XL Denali with 272K on it simply for her need for speed and power.

 

[wjburken]

Point of clarification: I did not do a complete rebuild. I tore it apart enough to replace the camshaft after it was scrubbed by a failed lifter. In hindsight, I should have completely pulled the motor and did a full rebuild since all that I didn’t take out was the block, pistons and crank.

 

[R3cord303]

Fair enough, however you haven’t driven with my wife. I had to get rid of our ‘09 Suburban LTZ because she thought the 5.3 was a gutless wonder. I bought it to get us by while I rebuilt the motor in our ‘07 XL Denali so when it was back up and running instead of keeping the ‘09 Suburban with 125K, we kept the ‘07 XL Denali with 272K on it simply for her need for speed and power.

I would very much like to get to 400 horse in mine but I also want to do it on 87 or 89 octane. Will see what happens with an afm delete. I’m probably delusional.

When the time comes its gonna be the delete kit, new rings, decked and mild ported heads, port the intake and exhaust manifolds, and tune it. I know that wont get it to 400. But hopefully closer.

 

[mikeyss]

My grandad however who is the previous owner of my tahoe says he has taken them at 65 and that stabilitrack is ‘the shit’

Stabilitrack has saved my ass twice, and I like having it. The more interesting time it saved me was when a guy on a smaller motorcycle decided to play chase with me and my over 400hp Tahoe... There was a straight away followed my a sharp corner. I dusted him at first, then hit the corner at 65, got halfway through the corner and smashed the pedal to the floor. It must have been a second or 2 too quick for me to do that, and all power went away and the right side shocks energized and got itself unafraid of what I was doing, it returned all power and off I went. Hadn't I had stabilitrack, I may have rolled it on its side. I pay attention, but it's easy to forget the hoe weighs 5500 lbs or so, and even though it goes fast, doesn't mean it's gonna corner fast.

 

[R3cord303]

Stabilitrack has saved my ass twice, and I like having it. The more interesting time it saved me was when a guy on a smaller motorcycle decided to play chase with me and my over 400hp Tahoe... There was a straight away followed my a sharp corner. I dusted him at first, then hit the corner at 65, got halfway through the corner and smashed the pedal to the floor. It must have been a second or 2 too quick for me to do that, and all power went away and the right side shocks energized and got itself unafraid of what I was doing, it returned all power and off I went. Hadn't I had stabilitrack, I may have rolled it on its side. I pay attention, but it's easy to forget the hoe weighs 5500 lbs or so, and even though it goes fast, doesn't mean it's gonna corner fast.

It hasnt saved me yet but it does feel like it nannys the power thats for sure. I turned it off in the rain because i wanted to see if the limited slip in the rear diff worked in an empty parking lot. I turned the wheel to the side and gave it a little throttle. Long story short this being the first time I’ve had a vehicle with an LSD- yes it works and its a super weird feeling.

 

[mikeyss]

It hasnt saved me yet but it does feel like it nannys the power thats for sure. I turned it off in the rain because i wanted to see if the limited slip in the rear diff worked in an empty parking lot. I turned the wheel to the side and gave it a little throttle. Long story short this being the first time I’ve had a vehicle with an LSD- yes it works and its a super weird feeling.

I think it's the traction control that nannies the power away more than the stabilitrack. My 06 Vmax Sierra has AWD but no traction control or stabilitrack and the pedal is MUCH more responsive than my tuned L9H Tahoe that has traction control and stabili.. However, the Vmax has SOOO much torque management built in, that it doesn't need those systems, haha

 

[Doubeleive]

I can't tell any difference at all unless I am fully loaded with passengers, when I have all 6 of us in the truck the difference is very subtle, but I also have hellwig sway bars front & rear, metal skid plates, and around 100lbs in subwoofers/enclosure in the back. Then filled with 26+ gallons of fuel, it just feels slightly heavier I guess, still handles like a sports car unless it's very windy then I get pushed around a little. The type of tires you run and being rwd or awd make a ton of difference, when I had my nbs yukon xl and crappy tires the ass end could slip out on me when it was wet out, easily correctable but dis-concerning, just using good tires eliminated 99% of that, now switching to awd on the current truck (with good tires) the best I have got was all 4 tires burning out on a fast hard turn which was sort of on purpose, I accidentally pulled out in front of someone and needed to scoot fast, lol I still had complete control and moved into a straight line perfectly.

 

[swathdiver]

No pics yet but I took the spare tire, jack, and lug wrench off/out of the Tahoe todat as a weight reduction measure this afternoon. Its not really faster or any more race-car than it was before- but going over the pass on the way back to the coast I threw it around some corners and the tail end for sure follows the front end better. Thats the best way I can describe it.

Next task is to remove the bracket that held the jack, the winch that held the spare tire, and the heat shield between the spare tire slot and the exhaust- and then the spare tire delete will be complete.

I’m going to keep looking for ways to eliminate weight like this

When my original hoist died we drove around without the spare for a month or so and the ride was much more harsh without it. My truck's suspension is ZW7 only.

As for weight reduction, the XFE models were slightly lowered and had aluminum control arms, the LC9 aluminum engine, aluminum wheel on spare, etc. This gave them 1 MPG more city and highway and asking around they may be a little better than that. You could also beach the third row.

Stick with the stock plugs. In my racing days, we used the then new NGK split-fires and picked up about 8 horsepower but lost 2-3 mpg.

Since my last oil change, the truck's fuel economy average has increased. Switched off of Mobil 1 to the AC Delco spec oil for the aluminum engines. Very pleased with it. Last 4 tanks of 93 octane gasoline have averaged 16.37 MPG. Not bad for a 5,900 pound Yukon XL 4x4 truck without AFM running KO2s, I think!

 

[swathdiver]

I would very much like to get to 400 horse in mine but I also want to do it on 87 or 89 octane. Will see what happens with an afm delete. I’m probably delusional.

When the time comes its gonna be the delete kit, new rings, decked and mild ported heads, port the intake and exhaust manifolds, and tune it. I know that wont get it to 400. But hopefully closer.

It will certainly make more power with those mods. I have dreams of wet sleeves with a larger bore and stroker cranks but the price and performance of a stock L9H crate motor makes such grand designs hard to justify. 403 horses stock! I'm at 307 RWHP now and figure a mild cam, heads and exhaust would bring it to 350, hardly worth the effort compared to the L9H.

 

[Kee Fuller]

Changed out my steering column shroud and shifting leather boot. Boot was old and had holes. Steering column shroud wasn't snapping in correctly

 

[CrashTestDummy]

Replaced the A/C belt on our '10. What a PITA!! The parts house belt remover/installer tool will NOT work on a '10 5.3.

 

[Doubeleive]

Replaced the A/C belt on our '10. What a PITA!! The parts house belt remover/installer tool will NOT work on a '10 5.3.

I used the lisle li59370, it's magnetic taking the belt off is super easy, putting it back on it's a little tricky due to space but once you figure it out, easy peasy.
https://www.opentip.com/search.php?...MIuLvnx87Y4wIVLR6tBh2nqgESEAQYASABEgIVVvD_BwE

 

[BG1988]

you will have t

I also have my spare removed, it wouldn't do me any good anyhow since my tires are slightly bigger than stock. But I can't find the GM repair kit, I tried to buy one from gmpartdirect some time ago, but they cancelled my order saying it was discontinued.

this is the one for the SUV OEM it's $168

https://www.ebay.com/itm/Tire-Repai...891762&hash=item4b61cb070d:g:eIAAAOSwMvtZO0S3





or you can get a common one from a Malibu Not sure if it will fit in the space under the cup holder tho
https://www.ebay.com/itm/GM-SPARE-T...048869&hash=item469a6401bf:g:i8QAAOSwnstdPf54




you will also want to carry these
Slime Plug Pack - 4" Brown Fat - 30 pieces
Slime Deluxe Reamer/Plugger Kit - Pistol Grip Style
Needle nose pliers

 

[BG1988]

Replaced the A/C belt on our '10. What a PITA!! The parts house belt remover/installer tool will NOT work on a '10 5.3.

The fact that its 100 pounds out of the vehicle doesnt matter as much as its 100 pounds out of what part of the vehicle. Taking 100 pounds off the top of the vehicle is going to make a bigger difference than 100 pounds off the bottom. Weight added or removed from outside of the axles vs in between the axles will also impact how the vehicle feels.

He should swap out for a XFE mod. as well as do a full hybrid body parts swap Hybrid rims, front /rear bumper,, aluminium hood & tail gate that will take out another 150 pounds..

roof rack delete

that will improve it a lot and get him 2-3mpg more from the aero dynamics

3.08:1 final-drive ratio

 

[Doubeleive]

Bought some of these to try out because I have had somewhat good luck with there carpet cleaner before, these seem to work pretty fair in general but when trying on the headliner it did leave some of the blue thread material behind, a follow-up with a regular baby wipe removed it

 

[wjburken]

With 4 kids, I need to get a couple tubs of those to keep in my vehicles.

 

[Rocket Man]

I replaced the rear bumper step pad on the Silverado and fixed a couple things.

 

[R3cord303]

He should swap out for a XFE mod. as well as do a full hybrid body parts swap Hybrid rims, front /rear bumper,, aluminium hood & tail gate that will take out another 150 pounds..

roof rack delete

that will improve it a lot and get him 2-3mpg more from the aero dynamics

3.08:1 final-drive ratio

The aluminum hood sounds interesting. Lift gate too but I don’t know about that. I’d really like to buy the tooling to do carbon fiber work though. Full carbon hood and lift gate skin, fenders, and roof. Delete the sunroof.