LEGEND41, below is a link to my install on the frame rail. I am not using the Amsoil bypass system I'm using the FS-2500. The pictures are a little more involved than just mounting the filter though but it does show where I put it on the frame rail. I didn't like the way the return line was to be run on the FS-2500 (an elbow into the oilpan drain hole) so I made my own return adapter that is shown in the pics. The FS-2500 people now have something like I made available but not at the time of my install.
OMCUSNR, I also run Delo and just went 9600 miles on it. My OA came back great other than a slight trace of possible anti-freeze. I think that could have been because I didn't drive the truck long enough to get it good and hot before taking my sample. Anyway, I change the OEM filter at 5K and the bypass filter around 10K. When I change oil I replace it with 14 qts of Delo and 2 qts of Lucas. Blackstone said the oil looked great especially for oil with almost 10K on it and said for me to go to 15K next time. Personally, I'm having a hard time with going that long but I'll do another OA at 5K or 7500 to see what it's doing.
Link to pictures:
FS-2500 Oil Filter Bypass System-Adapter for return line Photo Gallery by Steve Orel at pbase.com
