I got one of those dampers a little over a year ago and it was frustrating figuring out which weight went with which engine, nothing in the box or on the Summit site about it. I had to dig around the web for the PRW catalog to finally find it, no one on FABO had run one on a 5.9L Magnum yet at that time. What a stupid pain in the butt lol.
Sorry I missed you asking about them, mine came with instructions, I put the mag engine together in 2013. Actually I still have the box and the extra weights with the instructions.
