I installed my front motor mount according to the tech tips picture of the four pieces.(https://www.stovebolt.com/techtips/engines/motor_mount_front/pieces.jpg) When I disassembled the motor mount when pulling the engine it had these two 1/8 inch washers sitting on the frame cross member under the mount. Are these part of the assembly or someone`s added parts?? If needed I can jack up the front and slide them in I guess.