Yesterday I started to mount the timing chain cover. I had spent most of the day running down parts, like a dipstick tube and water pump backing plate, which sent me north and online. It was later in the afternoon when I got started. My patience level was a bit low, and my blood sugar! I put ultra blue sealant on the cover, the the gasket, and then another layer of ultra blue. As I started pushing the housing over the crank shaft, I noticed the new seal that came with the Dorman timing cover had a tear in the rubber. So I quickly pulled everything off and removed the seal. I went to my felpro seals box that came with the engine, only to find the seal in the stock kit has no flange on the end, because the stock cover has a recess built into the seal housing that the seal pushes up to, to hold it in place. The new cover has no recess, and thus needs a flange on the front seal itself to keep it from coming out. So I ran to Napa really quick only to find they have no idea what seal Dorman used, because none of the replacement ones they sell for a 460 have this flange. I finally found Dormans number, only to find them closed for the day. I called them today, and was told they don't sell the seals separately, only with a new cover. I pointed out the problem with that, and asked if someone in their technical dept. could find out what seal they are using so I could order one. What a waste of time and money. Meanwhile I now get to buy new housing gasket too. I knew there must be a reason why the Dorman kit was so cheap compared to the Summit brand housing.