07+ Brake upgrade on a 00-06 NBS, is it worth it?

[wjburken]

When i went to 20 inch wheels i got a spare from an escalade in the junkyard that had 20`s from the factory, I can`t remember the exact size but it is very close to the same diameter as a 275/55/20 and fits perfectly in the spare tire location.

My AWD 2013 Denali XL came from the factory with 4 20” wheels and a 17” spare.

Key is circumference of tire, not diameter of rim. That being said, the spare is there to get you to a place to fix or replace the good tire.

AWD is much more sensitive to circumference differences as the t-case and front diff are always engaged. On a 4WD vehicle, they are not engaged while in 2WD.

I have done double tire changes on 2WD cars with the economy donut so my drive axle has same size tires on it.

 

[iddqd]

All GMT900+ have 17" spare. You just need to play with the tire size to match the height of ur other 4 tires. Try to choose the most narrow, otherwise it will stick out too low under the back.

I am running 275/65R18 now, so my spare is 255/75R17.

In the future I am going to run 275/60R20 for summer and 275/70R18 or 285/65R18 for winter, so I will replace a spare tire accordingly.

This site shows u all the measurements:
https://www.1010tires.com/Tools/Tire-Size-Calculator


PS. I think it's a bad idea to change flat tire in 2 steps (if you have 16" spare). It is already dangerous to do it once, why subject yourself to double risk?

 

[Sasquatch]

I`ll get some pictures tomorrow.

 

[Sasquatch]

I tried to get a picture but there was no way i could get the whole wheel and tire in the shot. The tire size was a 265/70/17. It does fit up there with room to spare though, I think i have heard guys here say that a 33 will fit under there.

 

[Tonyrodz]

I tried to get a picture but there was no way i could get the whole wheel and tire in the shot. The tire size was a 265/70/17. It does fit up there with room to spare though, I think i have heard guys here say that a 33 will fit under there.

That's the size I'm running on my 03 with the nnbs setup.

 

[mountie]

Somehow, I didn't notice this thread....... I am planning to get PowerStop rotors/calipers - GMT900 size for the fronts and their '05 pads for the rear. of my '05 Yukon........
I just had my brake fluid flushed...... I WISH I thought of changing my brake lines to SS when I had the fluid flushed..

 

[JonnyTahoe]

When i returned my cores they never even looked in the boxes. I could have put two bricks in there but that`s typical of advance auto.

Napa was that way too. What good is a wore out caliper everybody returns them.

 

[pavich91]

Just went through all 40 pages of this thread. Great info!! Page 5 seemed to have all the part numbers you need.
I need to change my rotors / pads. Figured I'd change the calipers too so might as well go for this upgrade. Along with the SS lines. Planning for next week, will post an update after.

 

[mountie]

Just went through all 40 pages of this thread. Great info!! Page 5 seemed to have all the part numbers you need.
I need to change my rotors / pads. Figured I'd change the calipers too so might as well go for this upgrade. Along with the SS lines. Planning for next week, will post an update after.

I am happy with my PowerStop rotors/calipers & SS lines on my '05 Yukon.....
( I was born in Victoria,,,, Moving to Palm Beach ...tomorrow ! )

 

[TheAutumnWind]

Just went through all 40 pages of this thread. Great info!! Page 5 seemed to have all the part numbers you need.
I need to change my rotors / pads. Figured I'd change the calipers too so might as well go for this upgrade. Along with the SS lines. Planning for next week, will post an update after.

That is the best time to do it! Really does not cost anymore than simply replacing with the same original setup so why not go for a "free" OEM big brake kit?