Part No. | Description | Bar Size | in-lb./deg | Spec Sheet | 31-509-375L | LH Light Duty Ramp Spring 3/8" Dia., 1" I.D., 16.5 coils, 0.375 wire (Must buy matching RH) | 0.75" | 6.9358 | Download | 31-509-375R | RH Light Duty Ramp Spring 3/8" Dia., 1" I.D., 16.5 coils, 0.375 wire (Must buy matching LH) | 0.75" | 6.9358 | 31-509-003 | LH Light Duty Ramp Spring 1/2" Dia., 1.425 I.D., Leg 7.5", 9 coils, 0.5 wire (Must buy matching RH) | 1.250" | 26.6133 | Download | 31-509-001 | RH Light Duty Ramp Spring 1/2" Dia., 1.425 I.D., Leg 7.5", 9coils, 0.5 wire (Must buy matching LH) | 1.250" | 26.6133 | 31-509-007 | LH Light Duty Ramp Spring 5/8" Dia., 1.425 I.D., Leg 7.5", 9 coils, 0.625 wire (Must buy matching RH) | 1.250" | 61.1758 | Download | 31-509-005 | RH Light Duty Ramp Spring 5/8" Dia., 1.425 I.D., Leg 7.5", 9 coils, 0.625 wire (Must buy matching LH) | 1.250" | 61.1758 | 31-509-008 | LH Light Duty Ramp Spring 5/8" Dia., 1.750 I.D., Leg 7.5", 9 coils, 0.625 wire (Must buy matching RH) | 1.500" | 50.95
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| 31-509-009 | RH Light Duty Ramp Spring 5/8" Dia., 1.750 I.D., Leg 7.5", 9 coils, 0.625 wire (Must buy matching LH) | 1.500" | 50.95
| 31-TAILGATE | Tailgate Spring 31" long 1.25" Dia., 160 lb. pull @ 50", 0.177" wire, hook openings 1/4" @ 180 degree | n/a | 9.4979 | Download | |