Torsion Spring Left 0.218-1 3/4-42.0-A = $50
Heavy-Duty Double Garage Door Torsion Tube Shaft (for 16 ft door) = $25
(1-Pair) Heavy-Duty R12 Radius Curved Garage Door Track Rails (fits 7 ft door) = $320
EZ-Set Torsion Double Spring for Designed for double spring doors = $75