******* READ ******** The modules shown are Generic Electronic Modules (GEM) from Ford vehicles, specifically part numbers F81B-14B205-EN These modules are known to be used in 1999-2001 Ford F-250, F-350, and F-450 Super Duty trucks. The GEM is a control unit that manages various electronic functions in the vehicle, such as: Wipers and washers. Warning chimes. Interior and courtesy lights. Power windows and locks. Remote keyless entry. The four-wheel-drive system. The FCC ID GQ43VT15R on the label is associated with an auto security system receiver manufactured by TRW Inc. Shipped ASAP