I just finished making my own. I have rubber motor mounts and wanted to keep rubber mounts for the crossmember. TMR and Genright both use poly bushings. @B00mb00m has a thread in the how to. Here is a video on what I did.
I installed the GR crossmember on my jeep. It was a very simple/painless install. The only issue I ran into was that the third cat interfered with the cross-member. It was easy enough to move a few inches but I wasn't anticipating needing to do that when I jumped into the project.
I just finished making my own. I have rubber motor mounts and wanted to keep rubber mounts for the crossmember. TMR and Genright both use poly bushings. @B00mb00m has a thread in the how to. Here is a video on what I did.