Chevrolet / GMC 1/2 Ton Truck 2-Wheel Drive Truck
| Front or | Spring | Master | Master Kit Includes | |||||||
| Model | Rear Kit | Year | Capty. | Kit Type | Width | Kit No. | Leaf | Bracket | U-Bolt | Remarks |
| C10/1500, R10/1500 | Rear Kit | 1985-87 | 2600 | 1 | 2 1/2 | 510-205 | 504-205 | 503-2101 | 502-254 | H12 |
| C1500 except short bed w/extended cab | Rear Kit | 1988-98 | 2600 | 1 | 2 1/2 | 510-127 |
504-127 | 503-3119 | 502-215 | H14 |
| C1500 short bed w/extended cab | Rear Kit | 1988-98 | 2600 | 1 | 2 1/2 | 510-133 | 504-133 | 503-3119 | 502-215 | H14 |
| Silverado/Sierra 1500 | Rear Kit | 1999-07 | — | — | — | N/A | — | — | — | No heavy duty kit available. Try a Timbren kit or Air Lift to boost your suspension. |
| Silverado/Sierra 1500HD | Rear Kit | 2002-14 | — | — | — | N/A | — | — | — | No heavy duty kit available. Try a Timbren kit or Air Lift to boost your suspension. |
Chevrolet / GMC 1/2 Ton Truck 4-Wheel Drive Truck
| Front or | Spring | Master | Master Kit Includes | |||||||
| Model | Rear Kit | Year | Capty. | Kit Type | Width | Kit No. | Leaf | Bracket | U-Bolt | Remarks |
| Blazer, Jimmy, Suburban | Front Kit | 1973-91 | 1000 | 6 | 2 3/4 | 510-402 | — | — | — | Tapered extra leaf kit |
| Blazer, Jimmy, Suburban, K10/1500 pickup | Front Kit | 1967-72 | 800 | 6 | 2 1/2 | 510-384 | — | — | — | Tapered extra leaf kit, use w/taper leaf front springs w/ std. eyes only. |
| K10/1500, V10/1500 | Front Kit | 1973-87 | 1000 | 6 | 2 3/4 | 510-402 | — | — | — | Tapered extra leaf kit |
| K1500 | Front Kit | 1988-98 | — | — | — | N/A | — | — | — | Torsion bar front suspension |
| Suburban | Front Kit | 1992-03 | — | — | — | N/A | — | — | — | Torsion bar front suspension |
| K10/1500, V10/1500 | Rear Kit | 1985-87 | 2600 | 1 | 2 1/2 | 510-105 | 504-105 | 503-2101 | 502-254 | |
| K1500 | Rear Kit | 1988-98 | 2400 | 1 | 2 1/2 | 510-127A |
504-127 | 503-2119 | 502-215 | H15 |
| Silverado/Sierra 1500 | Rear Kit | 1999-07 | — | — | — | N/A | — | — | — | No heavy duty kit available. Try a Timbren kit or Air Lift to boost your suspension. |
| Silverado/Sierra 1500HD | Rear Kit | 2002-14 | — | — | — | N/A | — | — | — | No heavy duty kit available. Try a Timbren kit or Air Lift to boost your suspension. |
Chevrolet / GMC 1/2 Ton Van 2-Wheel Drive
| Front or | Spring | Master | Master Kit Includes | |||||||
| Model | Rear Kit | Year | Capty. | Kit Type | Width | Kit No. | Leaf | Bracket | U-Bolt | Remarks |
| Astro, Safari w/composite rear springs | Rear Kit | 1985-95 | 3400 | — | 3 | AST-1700 | AST-1 | — | AST-2 | Steel replacements for OEM composite springs. |
Chevrolet / GMC 3/4 Ton Truck 2-Wheel Drive Truck
| Front or | Spring | Master | Master Kit Includes | |||||||
| Model | Rear Kit | Year | Capty. | Kit Type | Width | Kit No. | Leaf | Bracket | U-Bolt | Remarks |
| Front Kit | See Timbren or Air Lift Kits | |||||||||
| C20/2500, R20/2500 | Rear Kit | 1985-87 | 2600 | 1 | 2 1/2 | 510-105A | 504-105 | 503-2101 | 502-250 | |
| C2500 under 8600 lbs. GVW | Rear Kit | 1988-00 | 2400 | 1 | 2 1/2 | 510-127 | 504-127 | 503-3119 | 502-215 | H14, H18 |
| C2500HD, 8600 lbs. GVW and over | Rear Kit | 1988-00 | 2400 | 1 | 2 1/2 | 510-129 | 504-129 | 503-2119 | 502-215 | H15, H18 |
| Silverado/Sierra | Rear Kit | 1999-07 | — | — | — | N/A | — | — | — | No heavy duty kit available. Try a Timbren kit or Air Lift to boost your suspension. . |
| Silverado/Sierra 2500HD | Rear Kit | 2001-10 | 2600 | 4 | 2 1/2 | 510-149A | 500-135 | 503-2120 | 502-215 | Frame must be factory drilled for OE brackets. |
Chevrolet / GMC 3/4 Ton Truck 4-Wheel Drive Truck
| Front or | Spring | Master | Master Kit Includes | |||||||
| Model | Rear Kit | Year | Capty. | Kit Type | Width | Kit No. | Leaf | Bracket | U-Bolt | Remarks |
| K20/2500 pickup & Suburban | Front Kit | 1967-72 | 800 | 6 | 2 1/2 | 510-384 | — | — | — | Tapered extra leaf kit, use w/taper leaf front springs w/std. eyes only. |
| K20/2500, V20/2500 | Front Kit | 1973-87 | 1000 | 6 | 2 3/4 | 510-402 | — | — | — | Tapered extra leaf kit |
| Suburban | Front Kit | 1973-91 | 1000 | 6 | 2 3/4 | 510-402 |
— | — | — | Tapered extra leaf kit |
| K20/2500, V20/2500 | Rear Kit | 1985-87 | 2400 | 1 | 2 1/2 | 510-105A | 504-105 | 503-2101 | 502-250 | |
| K2500 | Rear Kit | 1988-00 | 2400 | 1 | 2 1/2 | 510-129 | 504-129 | 503-2119 | 502-215 | H15, H18 |
| Silverado/Sierra 2500 | Rear Kit | 1999-07 | — | — | — | N/A | — | — | — | No heavy duty kit available. Try a Timbren kit or Air Lift to boost your suspension. standard duty section of this online catalog. |
| Silverado/Sierra 2500HD | Rear Kit | 2001-10 | 2600 | 4 | 2 1/2 | 510-149A | 500-135 | 503-2120 | 502-215 | Frame must be factory drilled for OE brackets. |
Chevrolet / GMC 1 Ton Van & Motorhomes 2-Wheel Drive
| Front or | Spring | Master | Master Kit Includes | |||||||
| Model | Rear Kit | Year | Capty. | Kit Type | Width | Kit No. | Leaf | Bracket | U-Bolt | Remarks |
| C3500HD | Front Kit | 1991-03 | 1600 | 6 | 2 1/2 | 510-492 | — | — | — | H1, Tapered extra leaf kit |
| All w/ Coil springs | Front Kit | — | — | — | — | — | — | See Super Duty Coils | ||
| P30/3500 except motorhome chassis w/ 4-wheel disc | Rear Kit | 1973-99 | 3200 | 4 | 2 1/2 | 510-143 | 504-143 | 503-2115 | 502-320 | OEM style fixed bracket kit |
| P30/3500 cutaway motorhome only | Rear Kit | 1993-99 | 1980 | 6 | — | 510-937 | — | — | — | Tapered extra leaf kit, used with four leaf taper rear springs only. |
Chevrolet / GMC 1 Ton Truck 2-Wheel Drive Truck
| Front or | Spring | Master | Master Kit Includes | |||||||
| Model | Rear Kit | Year | Capty. | Kit Type | Width | Kit No. | Leaf | Bracket | U-Bolt | Remarks |
| C30/3500, R30/3500 (“R” body only) | Rear Kit | 1973-91 | 2800 | 1 | 2 1/2 | 510-107 | 504-107 | 503-2101 | 502-258 | H2, H11, H12 |
| C30/3500, R30/3500 (“R” body only) | Rear Kit | 1973-91 | 2900 | 4 | 2 1/2 | 510-119 | 500-119 | 503-2113 | 502-298 | OEM style fixed bracket kit |
| C30/3500, R30/3500 (“R” body only) | Rear Kit | 1973-91 | 4200 | 4 | 2 1/2 | 510-141 | 504-141 | 503-2113 | 502-320 | H1, 6 leaf helper, high arch |
| C30/3500, R30/3500 (“R” body only) | Rear Kit | 1973-91 | 4200 | 4 | 2 1/2 | 510-139 | 504-139 | 503-2113 | 502-320 | H1, 6 leaf helper, low arch |
| C3500 DRW | Rear Kit | 1988-00 | 2600 | 4 | 2 1/2 | 510-135 | 500-135 | 503-2118 | 502-258 | H4, H5 |
| C3500 SRW | Rear Kit | 1988-00 | 2400 | 1 | 2 1/2 | 510-129 | 504-129 | 503-2119 | 502-215 | H2, H5, H15 |
| Silverado/Sierra 3500 | Rear Kit | 2001-10 | 2600 | 4 | 2 1/2 | 510-149A | 500-135 | 503-2120 | 502-215 | Frame must be factory drilled for OE brackets. |
Chevrolet / GMC 1 Ton Truck 4-Wheel Drive Truck
| Front or | Spring | Master | Master Kit Includes | |||||||
| Model | Rear Kit | Year | Capty. | Kit Type | Width | Kit No. | Leaf | Bracket | U-Bolt | Remarks |
| K30/3500, V30/3500 (“V” body only) | Front Kit | 1977-91 | 1000 | 6 | 2 3/4 | 510-402A | — | — | — | Tapered extra leaf kit |
| K30/3500, V30/3500 | Rear Kit | 1977-87 | 2800 | 1 | 2 1/2 | 510-107 | 504-107 | 503-2101 | 502-258 | H11, H12 |
| K30/3500, V30/3500 (“V” body only) | Rear Kit | 1977-91 | 2900 | 4 | 2 1/2 | 510-119 | 500-119 | 503-2113 | 502-298 | OEM style fixed bracket kit |
| K30/3500, V30/3500 (“V” body only) | Rear Kit | 1977-91 | 4200 | 4 | 2 1/2 | 510-141 | 504-141 | 503-2113 | 502-320 | H1, 6 leaf helper, high arch |
| K30/3500, V30/3500 (“V” body only) | Rear Kit | 1977-91 | 4200 | 4 | 2 1/2 | 510-139 | 504-139 | 503-2113 | 502-320 | H1, 6 leaf helper, low arch |
| K3500 DRW | Rear Kit | 1988-00 | 2600 | 4 | 2 1/2 | 510-135 | 500-135 | 503-2118 | 502-258 | H4, H5 |
| K3500 SRW | Rear Kit | 1988-00 | 2400 | 1 | 2 1/2 | 510-129 | 504-129 | 503-2119 | 502-215 | H2, H5, H15 |
| Silverado/Sierra 3500 | Rear Kit | 2001-10 | 2600 | 4 | 2 1/2 | 510-149A | 500-135 | 503-2120 | 502-215 | Frame must be factory drilled for OE brackets. |
- H2 Only fits vehicles without OEM rear helper.
- H3 Heavy duty available.
- H4 Use 510-135 to replace OEM single leaf helper.
- H5 With 454 engine use 502-340 U-bolt kit.
- H6 For trucks with 8 leaf or greater main spring use 534-25400 installation kit.
- H7 502-344 U-bolts included in master kit. Depending on which OEM spacer block is used, other lengths may be required. Consult heavy duty U-bolt chart.
- H8 The grossaxle weight rating (GAWR) for the front axle is listed on the vehicle certification label on the left door near the door latch.
- H9 Replaces OEM single leaf helper.
- H11 With OEM sway bar use 502-298 U-bolt kit.
- H12 Relocation of tail pipe may be required.
- H13 Will raise vehicle approximately 1”.
- H14 Installation kit contains 3 clamp-on and 1 bolt-on adjustable brackets.
- H15 Installation kit contains 2 clamp-on and 2 bolt-on adjustable brackets.
- H18 With diesel or 454 engine use 502-256 U-bolt kit.