You may be right, I don't know enough about either swaps to comment. I do know that
@toximus is giving me a good deal on his 42RLE conversion parts though, so there is that. I dislike the 42RLE, but I also dislike the 4.0. They are good at what they are good at though, and that's being reliable and getting the job done.
I don't think the OD on the 42RLE will bother me much anymore either. On my last one I got in the habit of turning the OD off anytime I started it up and eventually it just became second nature.
Also, didn't you mention something about the 32RH not working with the Savvy skid?
Right now the rig doesn't vibrate whatsoever.
It will be interesting to see if upon swapping the 42RLE in and making no other changes (i.e. sticking with the 4.88 gears) if it starts to vibrate.