If you are looking to get off the line faster you can now get a Quaife Limited Slip Differential and 3.55 Richmond gears. MoparSuperCenter has put together a custom rear end package so all you will have to do is swap out your pumpkin and you're ready to go. It is going to set you back a pretty penny at $3,295.00 it is not cheap. If you are interested check out their site and search for part number MPSCREAR61P3.55. With a Predator tuner you can now change your tune for the 3.55 gears.