Just recently purchased an 07 Silverado Ext. cab LT 2wd in (graphite blue?) and 5.3L engine. I sold my 2001 TA WS6 w/ 167,000 miles to get this truck. Never has a second of trouble with the TA, ran like a clock... but I wanted a truck this time around. I wanted the LS1 derived engine, so the Silverado and Sierra were at the very top of my list. When I found out that the 'old' body style was still being produced for 07 under the 'classic' name and the dealerships were willing to pretty much give them away... the deal was sealed on the GM trucks. I chose the Silverado over the Sierra because the Chevy had a slightly restyled front end vs. the Sierra's dated look. Under the hood looks pretty much identical to the TAs, aside from the placement of the alternator and a 'Vortec' cover. I am getting a little pinging under light acceleration with 87 octane, so I guess I'm going to have to increase it to 89 and see what happens. the TA's LS1 sounded like garbage with anything less than 93. The owner's manual says that the engine should run fine on 87... but apparently the author doesn't own anything with these engines! Also, I may ad that the stock speakers in this truck are HORRIBLE!! Definitely going to have to upgrade those very soon. Otherwise, I love the truck! Just wanted to introduce myself and hope to contribute here regularly. Anything you guys think I should know about this truck, just let me know! I only have experience with the engine. I've never owned a truck before... I came from an 87 Oldsmobile, 93 Honda Accord (was also a good car) 95 Firebird V6 and the 01 Trans Am.