I've been reading the thread on the fuel-water filter setup on the 90s models. Our 95 300 has an M11 and this is the setup. Would this be the original? When I bought this rig it was bypassed. I had the Cummins guys look at it, replace the filters and hook it back up. They advised me that I was good to go, however, after reading that thread I'm wondering if I can look...