Well I got my engine block back from the machine shop after being bored, cam bearings, and freeze plugs installed. During the reassembly I noticed the cam moves back and forth pretty good. If I install the thrust plate the cam can move a good 1/4" back and forth between the rear freeze plug and the thrust plate. I don't remember this much play.. cant be right unless the timing gear holds the cam in place and the two ride on the thrust plate.. Did the shop not install the rear freeze plug correctly? Thanks guys