Here's a pic of how I cut mine.It's on my Street Weapon but they are the same in that area.I cut right thru the access hole on a diagonal to keep the cut away from the screws.I put a peice of electrical tape on to seal it back up.Getting to the rear diff is pretty easy.Take out the four screws that go into the rear pivots/shock tower and the rear suspension comes off in one peice.The easy way to get the rear top cover off is to take the screws off the servo at the outer mount and the screw in the front steering arm,leaving the servo with tie rod attached to the top cover.Getting into the front still requires taking the front and mid top covers off,but not the rear.It's really not so bad after you've done it once.