When you swap it can we get a side by side pic?
Well, I had a little free time on Sunday and I installed the new pump. The 40290 pump is the same physical size as the 40222 pump - same filter and bowl as well. The only difference I can see is the hexagonal fitting on the top of the pump (the outlet) is about twice as tall as the one on the 40222 pump. I will get some pics and post them up.
So, how is the new pump working? Well, it seems to work fine, but my Autometer fuel pressure gauge has suddenly gone wonky. The needle is all over the place - at times it is at 9psi and then will drop to 0 and then swing wildly. I need to hook my mechanical gauge up and try and determine if the sender is at fault. The truck does seem to have a bit more power under hard acceleration, and the restricted filter light never flickers. Stay tuned, and hopefully I will get the gauge issue sorted out soon and I can supply some "scientific" data.