could be the gauge, I used to have mine on top of the filter housing and it worked fine, now its in the fitting on the 1/2 fuel line and still works great...
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99 QCLB 4x4 5spd, 5" str8, Southbend Clutch, AFE w/Outerwear, AirDog 150, Banks High Ram, Edge Drag Comp, Autometer gauges,DSS, Ranchand steps & front & rear, MotoMetal wheels,tinted, Pioneer CD/DVD, speakers. Weatherguard Toolbox, spray in liner...