Hy gas dude, Samantha is correct, you should check the clearance at each main bearing and shim to spec's. The crank should turn after each main bearing is set up, If you leave the rear main seal out until all the bearings are set up, you will only feel bearing drag, some bearings will only require a shim under one side of the bearing cap, some may require a shim on each side, hope that helps.
