Join Date: Aug 2007
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On my 04, I had to reuse a sealing ring from the old parts that fit with the black poppet to make it fit snugly in the housing. The blue spring upgrade kit did not have this plastic ring. From what I have been reading, it seems there may be some differences on this part is installed in the 03-early 04. Once I installed it the second time, the fuel was up to 62 psi at KOEO.
2004 (9/16/03 build) 6.0 FX4 Lariat CC
6.5" Pro Comp Lift with Dual MX6 Shocks up Front, 37" BFG KM2's, Power Slot Cryo Rotors & Hawk Pads, Moog Ball Joints, 4" MBRP SS Turbo Back CAT Delete, Coolant Filter, RCD EGR Delete, Zoodad, Harpoon, blue fuel pressure spring, ScanGaugeII, updated turbo drain pipe