Light Duty Suspension Products June 2015

Heavy Duty Helper Springs

Chevrolet / GMC

Chevrolet / GMC 1 Ton Front 2-Wheel Drive Truck, Van & Motorhome

Master Kit Includes:

Kit Type

Spring Width

Master Kit No.

Leaf Kit No.

Bracket Kit No.

U-Bolt Kit No.

Model

*Year Capty.

Remarks

510-492

C3500HD

1991-03 1600 6 2 ¹⁄₂

— — — H1, Tapered extra leaf kit

All w/ Coil springs

— — — — — — — See section on Super Duty Coils in this publication.

1 Ton Rear 2-Wheel Drive Truck

Master Kit Includes:

Kit Type

Spring Width

Master Kit No.

Leaf Kit No.

Bracket Kit No.

U-Bolt Kit No.

Model

*Year Capty.

Remarks

510-107

C30/3500, R30/3500 (“R” body only) C30/3500, R30/3500 (“R” body only) C30/3500, R30/3500 (“R” body only)

1973-91 2800 1 2 ¹⁄₂

504-107 503-2101 502-258 H2, H11, H12

510-141

1973-91 4200 4 2 ¹⁄₂

504-141 503-2113 502-320 H1, 6 leaf helper, high arch

510-139

1973-91 4200 4 2 ¹⁄₂

504-139 503-2113 502-320 H1, 6 leaf helper, low arch

510-119

Heavy Duty Helper Springs C30/3500, R30/3500 (“R” body only) 1973-91 2900 4 2 ¹⁄₂ C3500 DRW 1988-00 2600 4 2 ¹⁄₂

500-119 503-2113 502-298 OEM style fixed bracket kit

510-135 510-129 510-149A

500-135 503-2118 502-258 H4, H5 504-129 503-2119 502-215 H2, H5, H15

C3500 SRW

1988-00 2400 1 2 ¹⁄₂ 2001-10 2600 4 2 ¹⁄₂

Silverado/Sierra 3500

500-135 503-2120 502-215 Frame must be factory drilled for OE brackets.

1 Ton Rear 2-Wheel Drive Van & Motorhome

Master Kit Includes:

Kit Type

Spring Width

Master Kit No.

Leaf Kit No.

Bracket Kit No.

U-Bolt Kit No.

Model

*Year Capty.

Remarks

510-1175

G3500 Savana and Express

1996-07 2500 6 2 ¹⁄₂

— — — Extra leaf kit for 3 leaf taper springs only.

510-143

P30/3500 except motorhome chassis w/ 4-wheel disc P30/3500 cutaway motorhome only 1 Ton Rear 4-Wheel Drive Truck

1973-99 3200 4 2 ¹⁄₂

504-143 503-2115 502-320 OEM style fixed bracket kit

510-937

1993-99 1980 6 —

— — — Tapered extra leaf kit, used with four leaf taper rear springs only.

Master Kit Includes:

Kit Type

Spring Width

Master Kit No.

Leaf Kit No.

Bracket Kit No.

U-Bolt Kit No.

Model

*Year Capty.

Remarks

510-119

K30/3500, V30/3500 (“V” body only) K30/3500, V30/3500 (“V” body only) K30/3500, V30/3500 (“V” body only) K30/3500, V30/3500

1977-91 2900 4 2 ¹⁄₂

500-119 503-2113 502-298 OEM style fixed bracket kit

510-141

1977-91 4200 4 2 ¹⁄₂

504-141 503-2113 502-320 H1, 6 leaf helper, high arch

510-139

1977-91 4200 4 2 ¹⁄₂

504-139 503-2113 502-320 H1, 6 leaf helper, low arch

510-107 510-135 510-129 510-149A

1977-87 2800 1 2 ¹⁄₂ 1988-00 2600 4 2 ¹⁄₂ 1988-00 2400 1 2 ¹⁄₂ 2001-10 2600 4 2 ¹⁄₂

504-107 503-2101 502-258 H11, H12 500-135 503-2118 502-258 H4, H5 504-129 503-2119 502-215 H2, H5, H15

K3500 DRW K3500 SRW

Silverado/Sierra 3500

500-135 503-2120 502-215 Frame must be factory drilled for OE brackets.

If the Heavy Duty Kit is not available for your application, refer to the "Standard Duty" or "Air Lift" sections of this catalog. See Page 2 for "Remarks Key Chart". N/A - Not Available * For model years earlier then those listed refer to the "Standard Duty" section of this catalog.

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