George B
¯\_(ツ)_/¯
Yes, when they arrived I just rolled them back into the shop and stacked them up quick. Didn’t really loom at em much.
What did you do to your NNBS GMT900 Tahoe/Yukon Today?
- Thread starter phattyford
- Start date
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.
Wtf? That’s odd. Yeah I’d be asking for a replacement.
check the DOT date if the dates are not similar then they screwed you it's also missing the tire hairs on the ground down ones (might have been a return?)
the tire hairs are hard to fake on used (to make like new) tires
or two of the tires got stuck on a roller in the shipping center
Last edited:
George B
¯\_(ツ)_/¯
I reached out to TireRack and asked about this. They came back and indicated that the grinding on these two tires is from a process called optimization where the manufacturer tests for several different run-out measurements and does some grinding as needed to bring them into spec. I found a few very technical articles on this process and learned that Bridgestone held the patent for it for some time. They gave me a small refund and said I should be good to use them. I guess we will see how they work.
So they must have been out-of-round. Interesting. I had a set of 26” Venezia’s which are another of the Chinese brands that 2 different shops failed to balance and the third shop told me why. Not sure if the other shops didn’t test for this or what, but once balanced to counteract this they were fine except at the speed of 65-70...so I didn’t drive that speed anymore. Then I sold them.
George B
¯\_(ツ)_/¯
I will be mounting them up with a buddy in a couple hours. Fingers crossed!
Drok
Full Access Member
One of the reasons ive been afraid to get headers.
Were these discounted? If I were paying that kind of $$ and they were out of round I’d be livid. What if you mount them and have a problem? Will they take them back for a full refund after being mounted?
The headers don’t cause the drone imho, it’s the cat delete, and sometimes resonator / muffler changes. After I put my ARH longtubes on, it was pretty damn mild, until we removed the resonator and giant muffler, for a little 18” Magnaflow. Lol
iamdub
Full Access Member
Can you narrow down an RPM range where it drones the most? I've been hoping someone would do a Helmholtz chamber for this.
George B
¯\_(ツ)_/¯
Success! New wheels and tires mounted and balanced. Basically no runout and didn’t take a lot of weight. Runs straight, smooth and quiet up to 90 mph. Looks damn good too!
George B
¯\_(ツ)_/¯
They discounted me $70 for the pair which covered the mounting and balancing. I could have returned them if I had a problem anyway so I went for it. All good!
Awesome, glad they worked out plus you got a discount!
Deep into dual valve springs today. I hate installing dual valve springs.
DenaliReyes
Full Access Member
I haven’t paid much attention. I’ll have to get back to you.. [emoji106][emoji16]
Awaiting my AC Delco 19330121 MAF, so I can finally get my BBP tune installed!
Awesome!
iamdub
Full Access Member
When did you contact them and have you heard back? How long did it take to hear back?
Oh it’s been a bit of a PITA. I’ve got an aftermarket head unit, and remote start. So we figured out those both have to be 100% disconnected, so I have to pull fuses in the dash every time I do anything w/ the AutoCal.
After I was finally able to provide a data log, he sent a tune back right away, but with additional information that my MAF was pretty well toast. So I’m sitting waiting for it to arrive tomorrow.
On that note, I need a good plan for the replacement. I was planning to clear any faults with the Tech2 after replacement, and then hopefully start right up, but I know enough to expect it won’t go so easy like that. [emoji6]
swathdiver
Full Access Member
Deep into dual valve springs today. I hate installing dual valve springs.
Yeah but you know they're more better!
