I have a 3" RC lift as well, with 31" tires. I get no vibes what so ever but I never took it above 60. I'm not quite sure what you mean by the axle moving closer to the drivers side. Do you mean the whole axle shifted over? I had someone put the lift on so I'm not sure if he replaced the steering stabalizer or not. My steering wheel is off center and the whole truck kind of pulls to the left (more than normal, kind of a pain holding it straight sometimes.) Any tips for pulling the steering wheel off? Do I have to worry about the air bag?

Mopar asked about longer break lines. I haven't looked to see how much give I have, so I'm unsure about longer break lines. I still have my sway bars connected and I'm thinking about getting quick disconnects. If i get Q/D's will it flex more, enough to get longer lines or can I just straighten the lines out for a few extra inches and be fine? What else would I need to do with quick disconnects because of the added flex?

 

With most three inch kits, and I want to emphasize most, the front coils you get are the same length as stock, such as the Rancho and SkyJacker. I have a set of Skyjackers in my junk pile that are the same length and I know the Ranchos are also. If the coils are not longer, you will not need to change anything. You can reuse your old shocks and brake lines.

The rear leaves may vary, but if they are just add a leaves or new springs with 4' of free arch, then you will not have to change shocks or brake lines. The 3" kits are really the sweet spot for the most bang for the buck.