If you're repairing a standard Magnum 5.9 intake manifold leak, this is the kit you need. I've done this job 4 times, experimenting with different parts from different manufacturers (Dodge, Dorman, Edlebrock, Fel-Pro, Hughes, etc.) so trust me: don't buy cork end seals (yes, I know you have to have them clean completely first) and do not use fiberglass (garlock) connector seals. the one that seems definitive) I didn't use the pressure chamber seal at all. I used transfer punches to mark the holes and then cut a groove for the o-ring in my 1/4" aluminum plate to replace the pressure chamber (you'll need more 1/4-20 screws, but cut them to avoid hitting the bottom holes ). I've been trying to fail for over 6 months. No, it doesn't crash. better than I can ever remember, which leads me to believe the blower valve seal blew out the day I threw it out of the parking lot.