HEAVY-DUTY TRAILER TOW PACKAGE - 53B4-pin/7-pin connector and relay system for backup/B+/running lights, NOTE: This package does not include a Trailer Brake Controller (67D), Additionally, if customer wants a trailer brake controller after initial purchase, it will have to be an aftermarket trailer brake controller and aftermarket wiring harness, Frame Mounted Hitch Receiver, Tow/Haul Mode w/Trailering Wiring Provisions, trailer wiring harness to rear of vehicle for upfit, trailer stability control (TSC), 4/7 pin connector assembly and rear jumper, NOTE: This package does not include a Trailer Brake Controller (67D), Additionally, if customer wants a trailer brake controller after initial purchase, it will have to be an aftermarket trailer brake controller and aftermarket wiring harness