Just had mine replaced today - no questions asked, they replaced the entire assembly under warranty. It's nice to have a fuel gauge again. All my mods in no way affected my overall warranty (I'm sure my t-case is no longer covered, however).
Pete


'01 Rodeo Sport, 5 Speed Softie, Indy 4X rocker bars, OME 912's, Rancho 9000X's, Superwinch hubs, custom tube bumper with Warn 9000i , Flowmaster 50, TeraLow t-case gears, ARB front & rear lockers, TrXus MT's, Sway bar disconnects