Easy way to change them...jack up front of car and place on jackstands. Remove trans mount bolts. Use a floorjack and a section of 2x4 to jack engine up using the
oil pan. Remove mounts. If you leave it for a while, set the engine on a stack of 4x4's(2x4's). You can just replace the rubber section of those 2 piece stock mounts mount for about $20 each. For 90% of drivers, the stock rubber inserts are just fine.
Good Luck!