For those of you contemplating new motor mounts, I suggest going with
Brown Dog Offroad. Not only is their customer service outstanding, but their products are high quality, look great, and are made in the USA. Here is what I did yesterday...
After wheeling for a few months and noticing some strange engine vibes, I inspected my engine mounts and found the driver's side to be cracked. The good thing about Cherokee mounts is when the rubber cracks, the metal bracket holds everything together. That's just good engineering.
I did some research on

and read up on Brown Dog's mounts. By the way, "dog" and "mount" should never be used in the same sentence...but I digress. I called them up, gave them my

info, and got a great price on the K2572-0 upgrade kit with polyurethane engine brackets. They even called me up later that day to make sure I was not planning to go with an aftermarket header, which I said that I would. They changed the order and sent me the set that will fit an APN header.
The install was not too bad. I had to remove my JCR transfer case skid to get to my tranny mount bolts, but I took the opportunity to repaint it and replace some hardware. Funny how a couple trips on the Rubicon will play havoc on your parts.
You can see the cracked rubber bushing in this photo.
Here are the driver's side mounts sitting side by side. See any difference between the two? I prefer the purty yeller ones.
Typical carnage...
Here's a nice shot of the underside of the driver's side mount.
...and a top shot. I totally dig the American flag. Nice touch, Brown Dog!
This is not a difficult install. If you have access to your tranny mount bolts, you can have this job done in a matter of two hours, max. I had some trouble with the passenger side but after I removed the through bolt and installed it in two pieces, it went together like beer and nachos. I actually called them up late on Saturday and they were happy to give me that advice. Really good service. Well worth the money.
After driving a bit, I am very impressed with the feel of the mounts. My stock mounts must have been cracked since I have owned the Jeep because it has NEVER feel as solid and vibration free as it does now. A+ to Brown Dog. I am a completely happy customer and I think this is one of the best upgrades I have done.