The upper isn't an issue with the stock radiator either. You can either use the GTO hose that routes around the P/S pump or the upper from a '98 Crown Vic 4.6L (gates 22392). The only issue I had with the upper was the hood was hitting it until I installed a 1" body lift, which I believe you need for the explorer EFI to fit anyway. The lower hose from a 2002 7.3L F-250 (gates 22690) crosses back over and fits with some trimming.