If it were my truck, I'd do this:
Stage 1 Fix:
1) Put the truck on jack stands
2) Put some extra blocks under the truck so I don't have to call 911
3) Make sure truck is in neutral
4) Climb under truck
5) Take a light, tools, and rag
6) Remove the inspection cover below the torque converter (if there is one)
7) Check the bolts from the TQ to the flex plate (If there are any
)
8) Proceed with the reverse of steps 5, 4, 3, 2, and 1. You can forget #6
9) Put in the proper amount of trans fluid (my $02: You don't have enough in
there).
10) Drive it.
Stage II Fix:
1) Perform tasks 1-5 from Stage 1 Fix. Add Step 4b: Take a chunk of strong
gauge wire with you.
2) Unbolt driveshaft at the back u-joint (that is, for a one piece driveshaft)
3) Strap up the driveshaft so it does not fall on your head or personal parts
3b) Slide up front and unbolt the TQ from the flex plate
4) Unbolt Trans from motor block
5) Drag your floor jack under the truck...It'll be just out of reach
6) Make a decision: Can I unbolt the trans cross member easily?
Or: I think I'll unbolt the trans at the cross member..
Either one, have the trans supported...
Usually having two guys helps this task
7) Slide the TQ, trans, and driveshaft far enough back to get a "feel" of the
TQ's seating (per the YouTubes, etc.)
8) Put it Back together
9) Drive it
I don't know too much about life...
But this would be my fix-it.
Some would drain the trans and unbolt the drive line at the front joint.
That tranny fluid is na$ty and $$$. And it *will* get on your driveway.
But, that's my deal.
I stand to be corrected in so many ways.