I bought a used engine from a junk yard out of 2000 park avenue its a 3.8 supercharged. The junk yard says you need to change the oil pan the pick up tube and the harmonic balancer. The oil pan makes sense and the pickup tube. But not the harmonic balancer. I called advance auto and they couldn't find a part number for the harmonic balancer for a 2000 park avenue. Anybody know if there is a difference?