I have been looking at pictures online of the LA vs. Magnum balancer and it is definately the wrong part. Just odd because it does have a matching part number with the jegs website for the magnum balancer i ordered but the picture shows a completely different balancer. Oh well. The vibration very minor on the universal dampner I have on it now and I am using the middle sized weight which is correct. Im just going to drive it until I can find the correct part. If I ever build a magnum again I will defiantely keep the serpentine setup and settle for an electric pump. It makes everything easier.
