I would recommend that you watch MotorCityMechanic's YouTube video before attempting this repair. It covers everything you need to know to make this repair after removing the valve covers. Removing the valve covers was tedious and cumbersome, as Chrysler attaches all wiring harnesses and hoses to the valve covers with easily breakable plastic retainers. Speaking of which, valve covers and manifolds, including fuel rails, are easy to break, they're made of plastic, so try not to touch them if you can. The tools themselves fit well and do their job well. Just be careful not to pull the gears off the cams too hard, as they can shift the tools and drop the cam and chain, making the job difficult. If this happens you can put everything back in place by turning the opposite cam back to gain some play to lift the cog back into place. Don't panic and check the timestamps as described in the video. Much luck!