Fortunately, my neighbor is letting me use his in-shop hoist, the type with two outside the body pillars. While under there I will change the rear oil, look at the flex and universal and carrier bearing's and examine for plugged hoses, missing pins or clips or what-nots, look for leaks etc. WHAT is important, that YOU would suggest I add to the list beyond the typical lubrication and visual look-over for damage? Anything to re-torque at this opportunity. In other words, how would you spend your time. I realize some if not many do not have access as I do, and would plan an agenda quit inclusive of all procedures to perform with limited time for the $ an hour cost of a lift.