Just put one on my truck Wednesday night.. I had a GDP pump that had failed and purchased the AirDog II 165 to replace it. I did not install all of the items that came with the AirDog. I had 3/8 lines(from GDP kit) in place of the stock lines and left them on. AirDog II comes with 1/2" lines that I will replace next spring. The kit also came with parts to convert the factory fuel unit in the tank to a 1/2 inch feed tube that looked like it would work well, but I did not feel like dropping the tank at the moment. The kit I purchased is also adjustable pressure by just turning a screw on the pump. Was happy with how the kit came and the ease it went in.