Correct. You need to pull the heads to get to the lifters. However, if you dont want to have to deal with that BS again, we offer a set of replacement head gaskets [better than OEM] that will allow future lifter changes [and thus cam swaps as well] WITHOUT having to remove the heads. A 1/4" drive with a swivel socket at the end is all that is needed to remove the dogbones, and the lifers can then be pulled through the revised gaskets with a magnet... all for about the same price as Mopar gaskets.