Great to see the progress...
The whine being able to be felt...sounds like trans mount has collapsed due to oil leaking ...dont be surprised when you jack it up to remove it if it comes out in two pieces...new trans mounts are available from just about any auto parts store...
Also check the carrier bearing for the driveshaft...lube up the sliding spline...
Then check the oil level in the rear axle...
If ya get stuck, we are all just a holla away...
Look after those little ones...I still call my children little ones..and they are 42 and 44....
