@BlkGS Nice looking truck. I had an '06 3SS AWD TBSS as well. It's what I used to drag the AR190 home. Always thought it looked really cool to have a lowered sport truck doing the "heavy lifting" of a tow vehicle.
Bought in mine out of Winnipeg (I'm in Louisville, KY) in mid 2016. Flew up, paid, and drove it straight home. Only had it about a year. Previous owner grenaded a motor from launching too often and not keeping the oil filled properly. Sat for a few years in a warehouse. Had 36k and a new motor when I bought it for $10k. There was a reason it was so cheap. I replaced every single hose/gasket/rubber line/bushing on that truck in the first 6mo. Also replaced damn near every major part of the electrical system alternator/starter/battery/cables, and underhood fuse panel. There was rust everywhere. Previous owner was a service tech for the Winnipeg Public Works department and thought he was gods gift to mechanics. Sadly, he was not, and I had to redo a good portion of the work he did during the engine replacement. Found things like 3 different styles of bolts holting the exhaust piping to the manifold. Found missing bolts, and unplugged connections all over the engine bay. it was a hot mess, and took a few months to really sort out and feel comfortable driving. I'm somewhat amazed it made the trip from Winnipeg to Louisville without incident. I finally traded it away when I started a new position that required a lot of driving, and had higher pay. I was |....| that far from buying a new 427 short block from Texas Speed and Marine because the rear main and head gasket were leaking. With a new baby on the way, it complicated things just enough to ditch it.
A few words of advice. Keep the oil FULL. Some of the AWD guys run a quart over full. When you launch the truck from a stop, the oil sloshes AWAY from the pump pickup and will starve the front two rod bearings. Quick was to grenade the motor.........Keep the engine cool. it's super easy to overheat these things if you don't have the cooling system in top shape. Replace the coolant, make certain the water pump isn't leaking, and consider electric fans and a low temp thermostat......Put a trans cooler on it now. I ran one that was mounted in the drivers side break duct opening. Dropped trans temps by 20-25deg in daily driving, and removed all the spikes when towing uphill. Well worth the money......The 4L65E that is in there HATES to be overheated. Converting to a 6L80E isn't a trivial task. It can be done, but from what I remember requires significant wiring changes, as well as a front/rear diff change since the 4.10's from the factory doesn't play well with the revised ratios in the 6L80E compared to the 65E. Pretty certain that it requires a new transfer case as well. I've seen it done though. I would be VERY tempted to run a 4L80E if the 65E craps out on you. Much easier swap, although you don't get the benefit of the two extra gears. Honestly, aside from the fuel economy, the 65E is a decent trans, and should serve you well with a good tune in it.
I loved the vehicle overall. It handled pretty decently after I lowered it. Had TONS of power, and would accumulate speed quite effortlessly. I thought it looked GREAT considering it was already 10years old when I got ahold of it. The styling really held up well IMO. It was comfy to ride in, fun to drive, and towed our 190 exceptionally well. I often tell my friends I miss that truck, however I'm not sure I'll ever own another one. Maybe one day. In 99% stock form I managed to get it to run a 14.01@99.4mph. I went to the track that day looking for a 13.99 or 100mph (or better), just couldn't quite get it there.
Like I said, I really really liked the styling. Buddy called it "subtle fast". No overdone graphics, or body panels, or other shenanigans, just a nice low/muscular look to it, albiet a little "soft edged".
I have a phone mount I fabricated sitting around that you are welcome to if you want it. Uses a RAM ball, and clips into where the emblem on the dash is. I can't find a picture of it now, but it's yours if you want it. It's literally been sitting in a box for 3 years. I think I have a set of floor mats, a rear cargo cover/shade thing, and maybe an engine cover sitting around as well. All yours if you want it, just shoot me a PM with your address and I'll send all the stuff I have to you free of charge.
Anywho, that's a long post of a "congrats on the new ride!"