The Monroe Magnum Rear Suspension Shock Absorber for class 6-8 vehicles is the first gas-charged, large-bore shock designed for air spring and taper leaf suspensions. The nitrogen gas charge provides the fast response essential for today’s heavy-duty truck suspension systems.Built to take on high mileage and severe use, the Magnum is purpose-built for class 6-8 trucks and buses. Its 10-stage valving, nitrogen gas charge, and heavy-duty construction deliver exceptional rear suspension performance under demanding conditions.FOR HARDWORKING COMMERCIAL VEHICLES: Designed to handle the demands of high mileage and severe use class 6-8 trucks and buses.CONSISTENT RIDE: All-weather fluid with special additives handles extreme temperatures; larger 2-3/8-in. reserve tube holds more fluid for improved performance (most applications).EXCEPTIONAL HANDLING: 10-Stage valving tuned to each vehicle; larger 1-3/4-in. bore provides more efficient damping (most applications).STRONG AND DURABLE: Shouldered and bonded bushings with sleeve protect from bushing walkout; arc welds up to 360 for durability.BUILT TO LAST: Robust hydraulic lock-out prevents over-extension of air bags and protects the seal assembly (most applications).LONGER SERVICE LIFE: PTFE-coated bearing and nitrocarburized piston rod provide long-lasting durability (most applications).REDUCED NOISE, VIBRATION AND HARSHNESS: Delivers exceptional control isolating NVH under most driving conditions.IMPROVES PERFORMANCE: Nitrogen gas-charge maintains tire-to-road contact by reducing aeration and shock fade.BUY WITH CONFIDENCE: Comes with Monroe’s 90-day Risk Free Ride Offer and Limited Commercial Warranty.Common Fits: Compatible with rear suspension on 2004-2009 Chevrolet C6500 Kodiak, C7500 Kodiak, and C8500, and 2006-2009 Chevrolet T6500, T7500, and T8500. Cross References:Chevrolet: 15174901, Chevrolet: 15174903, Chevrolet: 50723, Chevrolet: 88982685, Chevrolet: 88982687, GMC: 15174901, GMC: 15174903, GMC: 50723, GMC: 88982685, GMC: 88982687, General Motors: 15174901, General Motors: 15174903, KYB: 346602, ACDelco: 50722, General Motors: 50723, ACDelco: 50723, NAPA Shocks: 65169, General Motors: 88982685, General Motors: 88982687, Gold Shock Absorber: 9180226, Bulldog HD: HD12150158, KYB: 346604, General Motors: 65169 .doc-card{display:flex;flex-direction:column;width:140px;border:0.5px solid #d0d0d0;border-radius:8px;overflow:hidden;background:#fff;} .doc-card:hover{border-color:#999;} .doc-card img{width:100%;display:block;aspect-ratio:3/4;object-fit:cover;background:#f5f5f5;} .doc-card-placeholder{width:100%;aspect-ratio:3/4;background:#f5f5f5;display:flex;align-items:center;justify-content:center;} .doc-card-body{padding:8px 10px 10px;border-top:0.5px solid #e0e0e0;} .doc-card-title{font-size:12px;font-weight:500;color:#111;text-align:center;line-height:1.4;margin:0;font-family:sans-serif;} .doc-card-link{text-decoration:none;color:inherit;display:block;} .doc-card-link:hover .doc-card-title{color:#1a6eb5;} Installation Manual Safety Data Sheet Safety Data Sheet 2