I did it and it wasn't too bad, but I also had the axles out and the sheet metal brace and diagonal braces. At first i tried to install with the center bolt tight and couldn't get the brackets to line up so I loosened the center bolt, installed, and then tightened the bolt (very hard to get a torque wrench up there but I did it
) In retrospect I could have probably lowered or raised the transmission with my jack to get it to fit.
My notes are from installing the wevo SS mounts but OEM should be very similar.
Someone on here recently had a,set of OEM mounts for a good price if it is still available.