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

Disclaimer: Links on this page pointing to Amazon, eBay and other sites may include affiliate code. If you click them and make a purchase, we may earn a small commission.

George B

¯\_(ツ)_/¯
Joined
Feb 5, 2020
Posts
7,769
Reaction score
18,599
Location
Oconomowoc, Wisconsin 53066
Thanks George, those look perfectly sized, not too big, not too small, just right!
They do work well.
I had a set of Husky molded ones but they would not work with my power boards and I figured would rub my tires. These are the same size and I used the layout for the husky ones to locate the holes in these for mounting. Slight mod to the boards and they clear by a hair.
 

Doubeleive

Wes
Supporting Member
Joined
Nov 7, 2017
Posts
26,254
Reaction score
39,364
Location
Stockton, Ca.
Why did GM switch from the A/C tensioner to the Stretch-to-Fit belt anyways? The tensioner on mine works perfectly and was easy to replace as was the belt.
probably because of all the squeaky tensioners they have had to replace and 1 less part to assemble on the assembly line, less cost, that's penny pinching gm for ya
 
Joined
Apr 11, 2018
Posts
7,124
Reaction score
14,364
Location
St. Louis
Why did GM switch from the A/C tensioner to the Stretch-to-Fit belt anyways? The tensioner on mine works perfectly and was easy to replace as was the belt.
Probably less cost when building.

Also maybe to have one less pulley or spring mechanism to go bad and cause the belt to snap.

More than likely the first reason

Edit: Doubeleive beat me to it. I type slow on my phone.... Lol

Sent from my SM-G930V using Tapatalk
 

Rocket Man

Mark
Supporting Member
Joined
Dec 25, 2014
Posts
26,004
Reaction score
50,862
Location
Oregon
Why did GM switch from the A/C tensioner to the Stretch-to-Fit belt anyways? The tensioner on mine works perfectly and was easy to replace as was the belt.
Less cost and one less part to wear out plus supposedly less noise and vibration. They’re now used by almost every vehicle manufacturer for accessories like ac compressors, power steering pumps etc.
 

bfourman

Full Access Member
Joined
Aug 23, 2015
Posts
139
Reaction score
257
Location
Indiana
Fuel pump replaced and tires rotated today.



9732fd84577e7f5cfea4c11a785ab94f.jpg


423ee6479ea6f20e14c4abbb843a1af3.jpg
 

PPV12HOE

Full Access Member
Joined
Sep 20, 2019
Posts
388
Reaction score
492
Location
NC
I have that Lisle tool also, but have never used it yet.

Since I just replaced the belt and tensioner pully on my 2001 the other day, (yes, it uses a tensioner pulley like the serpentine system does), I noticed that on my 6.2 there is threaded holes in the locations to mount an AC tensioner pulley. The AC belt on the nbs is a bit longer also, because of the use of a tensioner.

So I'm pretty confident that a nnbs can be retrofit with a nbs belt and tensioner pulley if someone wanted to

Sent from my SM-G930V using Tapatalk
It can be done @1BADI5 did it on his 2010 with a 5.3...said it was just a bolt on...
 

Forum statistics

Threads
132,376
Posts
1,866,976
Members
97,007
Latest member
Xnown
Top