Our Big Red Lock Story Why Big Red Lock? Photo Views of Big Red Lock Order Big Red Lock Today Email Home Page Big Red LOCK Company If you have a trailer with a 2 or 2 5/16 inch Bulldog hitch you need Big Red LOCK! Our lock fits Bulldog brand hitches.  If you have a different hitch brand than Bulldog and want to know if our lock will fit your hitch, please call us before ordering. Big Red LOCK can be used on only these hitches: Bulldog Brand 2 and 5/16 inch Bulldog Brand 2 inch Bulldog Brand 2 and 5/16 inch Bulldog Brand 2 inch Email: info@bigredlock.com Contact: Ken Marley Big Red Lock Ken Marley 4000 Cemetery Road, Lot #30 Noble, OK  73068 Phone:  405.740.4264 Home Page