The kit is 99% valve body, which can be taken off and worked on on a bench. I have the kit sitting at home waiting for me to install it. Sometime shortly I will be installing a cooler, in-line filter, installing the TransGo kit and then flushing the tranny. Before I can do anything, I need to get the valve body plate gaskets and a riviting gun (camphere, rivit & file flat a passage is required).