COILOVER KIT

Leave your tired, stiff suspension in the past and replace it with Belltech's 15030 Coilover Kit. Our kit lowers the front end of your 2021+ GM Suburban / Yukon XL from 0" to -3". Gain outstanding handling with an improved lower center of gravity to make turning and quick maneuvers with reduced body roll. Belltech lowering coilovers feature dependable Street Performance dampers with perfected pre-set damping, proven to deliver a smoother, balanced-feeling ride. The dampers are constructed of steel and are zinc plated for a rust-preventing finish. Showcasing a large 60mm damper body that holds increased volumes of oil, 35mm independent valves, and a low-friction design. All these details work together to provide you with damping that does not fade. Our 20mm hardened chrome piston rods give the design added strength and durability. To achieve a customizable ride height, our coilovers feature trapezoid threading on their exterior and a spring perch that easily moves up or down to set your ride height as desired. After customizing the height, it is important to adjust the bump stop engagement; we supply a progressive rate polymer, open-cell, bump stop, and packers to do just that. Our coilover design uses a main spring and a helper spring. The helper spring keeps tension on the main spring when the suspension is at full droop to remain seated in place. Both are made of cold-formed, high tensile steel and are powder coated for longevity. For a reduction in noise and vibrations, we use a high durometer vulcanized rubber bushing at the lower mount.

Additional Information

Unleash your SUV's potential! Belltech coilover kits offer an out of the box, ready to install, height adjustable solution to replace your lackluster underwhelming stock strut suspension.

Application Summary

2021-2024 GM Suburban / Yukon XL 2WD/4WD Long Wheelbase

Part Type

Coilover Adjustable Spring Lowering Kit

• 20mm hardened chrome piston rod
• 35mm independent valves
• 60mm damper body
• Easy installation
• Enhances ride quality
• Front Height adjustable 0" to -3"
• High durometer vulcanized rubber bushing
• High tensile steel springs, powder coated for longevity
• High-quality materials
• Low-friction design
• Lowers center of gravity and reduces body-roll
• Packers to perfect bump stop engagement
• Perfected pre-set damping
• Progressive rate polymer, open-cell, bump stop
• Street Performance dampers

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Product Downloads

#	Document Type	Download
1.	Installation Instructions

Installation guides, warranty details, and other supporting documents are provided by the supplier. In some cases, these files may originate from regions outside your locale, meaning instructions, warranty procedures, and images may not fully align with your specific vehicle or region (e.g., LHD vs. RHD differences, return policies, etc.). If you need clarification, please contact a StreetFX support agent.

Reference Information

Coilover Shocks, Lowered, -0.50 in. -3.00 in. Front, Chevy, GMC, Kit

Belltech coilover kits are designed to replace the factory shocks and coil springs. They include performance shocks with stainless steel construction, coilover springs, a dust boot, and a threaded shock body. Belltech coilover kits offer up to 3 in. of lowering adjustment and increase performance handling.