The Replacement Shock Absorber OEM #671707 is a high-performance, nitrogen gas-charged shock designed to minimize hydraulic fluid aeration for a more responsive performance. Specially designed concave bushings keep the bushing in place and prevent bushing walk out, while precision robotic welded eye rings provide superior durability. The reinforced seal and mirror-finished hard chrome OE style piston rod offer superior corrosion resistance and leak-free sealing, making it ideal for heavy-duty applications and the worst temperature conditions. This shock absorber is designed to handle even the worst road conditions, providing long, dependable performance.