I am in the midst of putting on my engine mounts and i cant seem to get the right(rear mount when looking under the hood) to slide in.. i am using the energy suspension inserts.. so far i have dropped a minivan on them and it has yet to go all the way in... i have heard to use wd40 to ease the way in and i tried it ... ES says the mount should be free of dirt and grease .. so whats the deal? Please help