Full Chevy 10 Bolt Spider, 8.5 Ring Gear, designed for the rear axle, the full Spider will protect your ring and pinion from any rocks or stumps you may back into. The PCP Spider Rock Guard is second to none, designed with not only protection in mind but also looks. The 10 bolt Spider includes a .500 thick CNC plasma cut flange, .625 Rd. Cold Rolled Steel legs, Fixtured Mig welded welds, CNC machined counter bored bolt holes, Normalized and shotblasted, Phosphate primed and Powder Coated a durable black hammertone. All stainless steel mounting bolts are included. Cover not included. For more color choices click button below "Powder Coating Options", Black Hammertone is Free. Fits: 1500, Tahoe, Yukon, Suburban 1988-1999 W/8.5 Ring Gear