You have to pull it forward to remove it. Once you unbolt it from the engine it will rock back and forth very easily. HERE
is the how to with pictures. I did the inserts with no vice. Used a screw driver and hammer to knock out the old one and was able to push in the poly mount with my hands easily enough. I highly recommend Energy Suspension mount insert or the Massive one since it's the same mount just purple due to the design being better. I actually split a Prothane mount just recently which cause me quite some headache. It's actually cheaper to get the ES mount from them directly from Energy Suspension unless you want purple then get the Massive mount.