Not a swap, but I needed to show the tow rig some love before the next build. I got it as a very rusty 2005 2wd Silverado 3500 6.0L/4l80 base ext cab dually from NY. Now its a completely frame off restored 4wd with a custom fabricated box. Still cheaper than a new one and more reliable to boot. The list of what's been done is 100 miles long, but the quick of it is: Original lq4 +.030 243 heads, small summit truck cam, long tubes, dual 3" exhaust, Gen4 TBSS intake and TB, 4l85e from an 8.1 avalanche, np261hd manual transfer case, 4.10 gears and lots and lots of upgrades from start to finish on the whole truck. still more to be done but its ready to hit the road next week! Realized I don't have current pics. Gonna take some today!