Reference Chart

Reference Chart

Ramp Springs

31-509-003/005 Left 31-509-001/007 Right

31-509-375L Left 31-509-375R Right 31-TAILGATE

Note: Ramp springs must be bought in pairs (ie. LH and RH)

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" n/a
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" n/a
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

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