This is a 2007 Yukon XL Denali, with a 2008 6.6l LMM durmax conversion. This rig has been amazing it has the allison trans, transfer case, and 11.5 axle from the truck. 3.73 gears as the durmaxs had from factory. Lots of upgrades, tuned and deleted of course, lift pump with sump. Has working 4WD. Lots of work went into this rig and the conversion was done at 121,000 miles. So the last 50k miles were all put on by us. Runs great, I can get about 19.5 mpg going almost 90 mph. On the tires its on, so if someone went to stock wheels that would pick up. I've taken it to all over the states and never had a problem. Would trust it for another 200k miles. Asking 23,000obo. Which I realize is a lot of money, but if you don't believe its worth it look them up at duramax specialties and see what they cost. Also financing can be obtained by lightstream. https://www.lightstream.com/ theyll make it possible to finance this beast.