Bringing back an old thread! I bought a set of mounts off eBay a couple weeks ago and I am having the same problem. The arm/flange on the passenger side mount is too long. I have been going back and forth with the seller and he has told me to pull out the flange and put my old one in. That is not going to happen, much more than a tight fit. Honestly it shouldn't be coming out since it supports the motor. Also, I am not sure about just making it fit. I feel as though that would make the mount fail prematurely or make it become less effective.
Can someone point me to a solution or a mount which will just bolt right in?