Engine mount replacement help - b2200

Some help with replacing the engine mounts please guys.. Do I just need to jack the motor up a little and the mounts will come out? The bolts seem a little extended so Im worried they dont come off without removing the whole engine??

bump?

Yes you can use ur jack ( cherrypicker might be better), Just remove the crossmeber so you can get your jack under. ME I would loosin up the engine mount on both side but leave 1 nut on one side to keep it in place. So change 1 at a time. If it hard to get in it place then loosin up the mount bracket on the engine and work it into it place. Dont force it. Oh and cuz i had this problem. When u get one of ur mounts out, look at the old one and the new one and make sure they are the same. I noticed when i did mine, my new one was 1/4 too tall and couldnt get it in it place. Good luck!

Ive done it!
Just want to thank you for responding!!
About to take a road test but things seem a bit better in the cab already

However, I have a definite hum/vibration at one specific RPM. I picked this up by putting it in neutral and slowly revving up.. Im not sure what RPM it is cos I dont have a tach, but its around 2000 or so Id say. Any ideas? Flywheel?