This applies to all W body cars with dog bones at the top mounts.
What this does is take the open air space that is originally in a front to back orientation in the mount and puts it up top and puts the more solid rubber in the front/back movement. This helps firm up the engine from front to back rocking.


Remove one dog bone (to keep from having to pull the motor back in line)


Then spray lube at the outer edge of the rubber in the mount attached to the radiator support. Use a screwdriver to pull the rubber down to lube it up good.



Put one of the bolts from the dogbone into the mount and tighten it down. Using a couple or wrenches or ratchets push the mount to rotate it. Frequently having a friend help you get it moving with a screwdriver makes it go much easier.



Put that dogbone back on and do the other.

What this does is take the open air space that is originally in a front to back orientation in the mount and puts it up top and puts the more solid rubber in the front/back movement. This helps firm up the engine.