just so everyone knows, one of the reasons this happens especially under load going uphill is because of axle wrap. Remember the pinion points down in the front when driving forward. Going up a hill while under load is the worst because the front end is already unloaded some.
Don't believe your front axle has axle wrap issues, have someone else drive it and watch that front pinion, even high dollar custom spring will have a small amount, but just about any mass produced spring will allow a decent amount of pinion movement
that's the reason Colby could hear and feel it going up the rock but park it and the driveshaft turns free, because the pinion is not trying to point down.
Not trying to discount what everyone else has said worn mounts and or t case bearings in the front output can make it way worse just wanted to point something out
Don't believe your front axle has axle wrap issues, have someone else drive it and watch that front pinion, even high dollar custom spring will have a small amount, but just about any mass produced spring will allow a decent amount of pinion movement
that's the reason Colby could hear and feel it going up the rock but park it and the driveshaft turns free, because the pinion is not trying to point down.
Not trying to discount what everyone else has said worn mounts and or t case bearings in the front output can make it way worse just wanted to point something out


That's good news. Should have it rollable by Sunday evening.















Also, I recently had a break-in, and so I have a solid window in that side temporarily. I have a new slider window I need to install, and would like to have it in the comparison photo. 
it looks awesome and I hope it does all that you need it to