I've noticed some vibration after installing my teraflex BB, and was wondering if anyone else has noticed it. It could be that my tires and starting to shake a little more than they did when new, but I really don't think that is the case.

Does anybody know of a transfer case drop kit or anything like that?

 

Unless you upgraded your drive shaft to a U-Joint type and forgot to adjust your pinion angle, you shouldn't have any drive line vibrations as the JK uses a drive shaft with CV joints.

If you have a shake, you should have your tires balanced again.

 

Sorry, but the alignment on JK's are not touchy. If you went into a mud hole the other day and now have the shakes at 65, you need to make sure you do not have mud caked onto the inside of your wheels. This is very common when mudding and as you can imagine, mud is just wet dirt and dirt is heavy. Need I say, letting it sit on your wheels will throw off your balance.

 

What he said.