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Product Overview
For decades, the 1988–1998 Chevy C1500 (OBS) has been at the heart of the Belltech story. Now, after 40 years of innovation, we’re honoring the platform that helped define us with the most advanced suspension system ever offered for an OBS. Our complete front and rear coilover + 4-link conversion kit transforms this classic into a modern-handling machine; delivering tighter control, improved ride comfort, and a fully adjustable stance that turns heads on the street and delivers confidence at the track. Built as a fully bolt-on solution, this system blends performance engineering with everyday drivability, giving enthusiasts the perfect foundation for their next build.
This all-new Belltech system brings the iconic OBS platform into the modern era with refined suspension geometry, broad adjustability, and real performance gains; all while preserving ride quality and bolt-on simplicity. Improved bump-steer correction and a tighter turning radius achieve the precision and control of a modern performance truck.
Fits: Chevrolet C1500 w/ 1.25" Factory Rotor 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998
Features:
- 3” Drop Spindle
- Built from robust ductile iron
- Retains factory track width
- Works with OEM brake components or 19+ 4 Piston GM Calipers (requires 1.25" rotor)
- Designed to clear most 18" or larger wheels
- Forged Aluminum Upper Control Arm + Mounting Bracket
- Built-in +4° caster for improved alignment and handling
- Raised pivot point optimizes anti-dive geometry
- Compatible with OEM and Moog ball joints
- Forged Aluminum Lower Control Arm + Matched Coilover Assembly
- Matched coilover and lower control arm for optimized performance
- Integrated microcellular foam bump stops for refined compression control
- Height-Adjustable Coilovers
- 2” (50mm) of fine-tuned adjustability; set ride height from -1” to -3”
- Composite upper spring adapter ensures proper spring alignment
- Sport-enhanced 300 N/mm spring rate sharpens steering response
- Super C-Notch Assembly
- Expands suspension travel for a controlled, comfortable ride at lower heights
- Boxed design reinforces frame strength and rigidity
- 3/8” thick hard-anodized aluminum arch support
- Integrated foam overload bump stops
- 4-Link System
- Heavy-duty 2” x 1/4” wall tubing built to plant power to the pavement
- Adjustable axle brackets: 4”–6” ride height
- Tunable anti-squat (75%–120%) and pinion angle for tailored traction + launch
- Rebuildable, greaseable rod ends for long-term serviceability
- Adjustable Track Bar
- Maintains proper axle centering + roll stability
- Constructed from 2” x 1/4” A36 steel with low-friction, triple-wall vulcanized bushings
- Ride-height positions: 4”, 5”, 6”
- Height-Adjustable Coilovers
- 60mm (2.36”) galvanized steel housing for optimized corrosion protection
- Powder-coated high-tensile 35 N/mm spring rate sport-tuned springs
- Progressive-rate polymer foam bump stops provide smooth limit control
- Spherical lower mounts for smooth articulation
Includes:
- Drop Spindles (2)
- Caliper Mounting Brackets (2)
- Front Coil Over Assembly (2)
- Upper Control Arms & Mounting Bracket (2)
- Lower Control Arms (2)
- C-notch Assembly (1)
- Link Bars & Mounting Brackets (4)
- Adjustable Track Bar (1)
- Rear Coil Overs (2)
- Optional: Front and Rear Sway Bars
Notes: Vehicle must have factory 1.25" thick rotor brake system, If you are selecting 2019+ GM 1500 4-Piston Calipers you are required to independently purchase the upgraded brake calipers and brake hoses needed to convert from the former GM “OBS” C1500 brake system to the modern brake system.
Belltech Part# 350100SPC / 350100HK / 350101SPC / 350101HK
Brand (Manufacturer) Info
Belltech’s history of developing quality products that improve safety and performance have allowed them to become one of the most trusted brands that many customers turn to when searching for premium aftermarket products for their trucks, Jeeps, and SUVs. Every year our R&D department continues to push the boundaries in manufacturing techniques and product design to add new applications to our product listing.
