I do miss it, the SSS's are one of the best looking factory sport trucks made. They aren't the fastest, but it was a great all around head-turning truck. It towed my 20' Searay like it wasn't even there. Oh and I drove mine in the winter with dedicated snow tires and if I stomped on it on compact snow it would dig and go! Great truck!
I got tired of waiting for an SS model so I sold my 03 SS that I bought new off the showroom floor, and bought my 19 High Country. I would definitely take a look at one if they came out with one.
As I posted somewhere back in this thread, mine has quit making the noise. I even used electronic hearing protection to amplify the sound, just to make sure. And now, looking at the pic's just posted, I'm guessing with constant metal to metal wear, mine just wore down on its own. Warm weather should be here soon, and I'll listen for it again.
Yes, I use premium, it's 92 octane, but it is also non-ethanol. I've been running it since 2003 when I bought my Silverado SS. Do I need it, maybe not, but whats a few penny's here and there.
I worked my way along the strip, heating a foot or so then carefully pulling/prying it loose. I used some fairly soft wedges to aid in pulling it loose.
eta: I removed both end caps from the running boards too.
If it came from the factory with Nav, then you should have an SD card. If you are the 1st owner, look in the glove box for it, the dealer may have forgot to insert it. If it did not come from the factory with Nav then I think you are SOL. GM used to sell them on the Accessories site, but It appears it is no longer available.