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.

iamdub

Full Access Member
Joined
Apr 23, 2016
Posts
20,821
Reaction score
44,943
Location
Li'l Weezyana
I think mine might be the same thing, leak started after i was messing around with the rear camera.
Just happened to notice a stain on the headliner that i had not seen before... :eek:

I checked the boot yesterday, make sure it was fully seated and no corners rolled...

ugg.

Yup. I believe I caused this. I did the same- pressed to make sure it was fully seated, etc. They may have an adhesive in them when they're first installed. I know it was a pain to pop out but went in more easily. That difficulty removing it clearly wasn't from a tight fit. It was either stuck from being there, undisturbed, for so long or it has a light adhesive.
 

iamdub

Full Access Member
Joined
Apr 23, 2016
Posts
20,821
Reaction score
44,943
Location
Li'l Weezyana
i went out there with a little strip of gorilla tape and stuck it right above that boot/seal.
now it has a little gutter thingy.

I have a single stain on the head liner now, hopefully it does not get any larger...
:D

Mine is very faint. I'm not even gonna bother trying to clean it since I plan to dye my headliner and plastics.
 

mikeyss

Full Access Member
Joined
Nov 11, 2011
Posts
1,701
Reaction score
3,245
Location
Longmont, Colorado.
Ya he showed me a stock one and then one that has the weld added, the stock weld is pretty thin he said they come apart right there and the weld fixes that

Do you have any pics of this? I'm just curious, because I know once I get my new motor installed, my 6L80 may get pissy, she has 160k. I have been planning on a rebuild of my 6L80 and any info you have that your builder did I'm curious of. One of the upgrades I read for a 6L80 is the installation of the 6L90 input carrier. The 6L80 has 4 pinion planetary... The 6L90 has 6


Screenshot_20210122-194628_Chrome.jpg
 

Doubeleive

Wes
Supporting Member
Joined
Nov 7, 2017
Posts
26,216
Reaction score
39,292
Location
Stockton, Ca.
Do you have any pics of this? I'm just curious, because I know once I get my new motor installed, my 6L80 may get pissy, she has 160k. I have been planning on a rebuild of my 6L80 and any info you have that your builder did I'm curious of. One of the upgrades I read for a 6L80 is the installation of the 6L90 input carrier. The 6L80 has 4 pinion planetary... The 6L90 has 6


View attachment 268577
no he didn't mention it nor did I see it, I can ask him on Monday, Is that something that would have came in a kit?
 

akbrener

Full Access Member
Joined
Mar 20, 2012
Posts
332
Reaction score
158
Location
Baltimore, MD
Installed a Dynomax Ultra-Flo Catback. Been watching this thing off and on for a few years on Rockauto and it is always out of stock. Just happened to need to replace a muffler that rusted out and snagged it for $312 shipped. Fits like a glove, installed in the driveway with the rear up on jack stands.

Sounds great, not very loud but really good deep tone and minimal noise inside. unnamed.jpg
 

Forum statistics

Threads
132,332
Posts
1,866,220
Members
96,957
Latest member
beka1283
Top