Worked on the right side door track. Drilled and tapped two additional 1/2" holes for National Hardware 293BC 1/2X6 Bolt Hook, Zinc (Tractor Supply). Each hook supports a Galvanized Box Rail Splice Bracket which holds (National Mfg. Plain Box Rail 450 lb. Capacity w/24" OC Brackets - 10' Galvanized N105-213) rail, with 1/2 in. Zinc-Plated Offset Flexible Box Rail Hanger Kit.
