Growing up doesn't have to suck

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Tonyrodz

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Funny story......My son is 29, and when he was little I used to buzz his head all the time. When it got long--ish, he'd ask me to do it for him--fast forward as an adult.....he has curly wavy hair and I never knew lol!! Since I was always buzzing his head. Now I know.
 
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iamdub

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Exactly... I know what you’re saying!
Just wanted to chip in that I liked your thread and all the work you’re doing. I’m planning to post some updates on my own ‘08 Tahoe

Thank you! Put a link to your build thread in your sig :thumbsup:
 
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iamdub

iamdub

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Took it for a shakedown run and to test the exhaust, then to get dinner, then to Walmart.

I take back what I said earlier about the extra muffler not making much of a difference. The mufflers are actually quieter than before, when I had cats, as I thought they should be. It made no sense to me how having an extra 22" of muffler would not make much of a difference. The noise is what little leaks past the cutout since it doesn't seal up 100%. I stuffed a couple wadded-up rags in the cutout dump and went for a test drive. It was almost as quiet as stock. I floored it and, as expected, the rags shot out somewhere around 5,000 RPM and the noise was back. I turned around to retrieve the rags and went home, satisfied that all that muffler work actually was a success. I have a plan and parts to move forward in this, but it can wait until cooler weather.


... Besides, I now have something much more pressing to be concerned with:

A couple hours ago, on my way back from Walmart, I turned onto the road that my street is off of. As I accelerated, I heard and a sharp clunk and felt it in the steering wheel. I slowed and looked in the mirror to see if I ran over something, but the road was clear. I let it idle forward and could hear an intermittent clinking. Stopped and revved it in neutral to see if it was the trans- nope. It only does it when rolling. I idled the ~3/8 mile home and parked it. I'll pull the front wheels tomorrow and assess. It's either a blown hub bearing or a broken hub bolt. The hubs have always felt and sounded fine, so I doubt one would just go from fine to this bad with no warning. I think I know what it is since there's nothing else up there to cause these symptoms. I'll update later...
 
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iamdub

iamdub

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Oh, as for my exhaust plans- I originally wanted the cutout/unmuffled circuit to merge back into the pipe after the muffled circuit and continue over the axle and out the back. Materials and space constraints prevented this, so I just dumped it in front of the axle. Since I now know that the cutout is contributing to the noise, and it's exiting under the cabin, I'm gonna work on getting it tied in and out the back as originally planned, in hopes that this makes it quiet enough inside the cabin. I want the cutout pipe to be as free-flowing as possible, so it can't be necking down into a smaller pipe. Since my Tahoe is lowered, I can't afford to have the over-axle arch any larger than the factory 2.75". Really, I'd like to get a shorter, but wider (oval) pipe for even more clearance. I could simply get a 3" U-bend and hammer the bottom and/or top side(s) to make it 2.75" or less. But, such a pipe is about $30 on Amazon.

I was passing through New Orleans yesterday for work, so I checked FB Marketplace (I use Jenn's account) for take-off exhaust pipes. It didn't take long at all for me to find an ad for a factory '06 LLY exhaust, complete with muffler. It included the factory air intake and filter assembly, all for $50 or best offer. I met up with the guy and, since I had no use for the intake, he offered the exhaust to me for $30. Score! So, now I have plenty of nice quality 3.5" tubing with more bends than I'll ever need. I was even considering using the muffler since I thought mine weren't sufficient, but now I'll try to sell, trade or give it away. Since the pipe is 3.5", I can beat it down to ~2.5" or so high and it'll still flow as well as a 3" pipe.


Pic from seller's ad. I even got the 3.5" band clamp:

IMG_E3022.JPG
 

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