Ok, put the truck on the lift. Had to use the pad extensions and took a while getting them positioned, lifted the truck just off the wheels and rolled it away from he wall. Lifted it to about half height like if I was going to work on the brakes, the vehicle defiantly rocks and flexes, would not want to do any heavy wrenching. Lifted to full height, defiantly would not get under it, added two jack stands at either end and the stabilized it enough that I was ok being under it however the addition of two more jack stands and placing 4 of them at the corners of the vehicle would be the way to go.
With the vehicle at full height you can easily access any thing under it, nothing in the way to remove the transmission. Drive shaft, exhaust, brake and fuel lines are all easily accessible.
The lift had no problem lifting the weight but you defiantly need to have the vehicle positioned and balanced correctly and use jack stands to stabilize it after you get it to the height you want. The ride up and back down is kind of "white knuckle".
Then I lowered it down and rolled the lift with the truck on it back to its place in the shop and set it down.