KSP Performance 2" wheel spacers (8x6.5" / 8x165.1mm) are built to give your 8-lug Chevy/GMC truck a wider, more aggressive stance while adding the clearance needed to run larger tires. By moving the wheels outward 2 inches (50mm), these spacers help reduce inner-side rubbing against suspension components and frame rails, improving turning clearance and overall confidence on-road or off-road. Each spacer is forged from 6061-T6 aluminum and CNC machined for precise, flat mounting surfaces to support consistent fitment and stable wheel seating. Hub bore is 126.15mm, and high-strength pre-installed studs use a 14x1.5 thread pitch. Hardware is manufactured from heat-treated SCM435 steel to ISO/DIN 10.9–12.9 grades to help resist stretching or failure under load. This kit includes 2 spacers and 16 open-ended lug nuts, making it a convenient choice for targeted axle spacing. Recommended for many 8-lug applications using 8x165.1, including popular Silverado/Sierra HD models—always verify your vehicle’s bolt pattern, hub bore, and wheel clearance before purchase. For safe installation: clean rust/dirt from the hub, hand-tighten only (no impact), use thread locker, ensure 5–7 full turns of engagement, and re-torque after 50–100 miles and again after 2,000–3,000 miles.