I put my spacers in literally one week ago and this is what I found.
Vinnies spacers fit PERFECT.
Do the Engine side FIRST, without unbolting the trans mount.
There is two brackets for whatever on the oil pan side, spanning the wood across those at an angle prevents any damage against the pan.
Jacking up the trans pan, moves the engine away from the firewall for some reason. Jack it up, and hold the mount in at an angle facing forward and SLOWLY lower the jack. The mount will drop right in.
Also, some 04+ people cant get to the top two engine mounts, you have to remove the 3 bolts holding the bracket to the engine and take the mount/bracket off and swap it.