Eaton Posi Differential - 30 Spline - 2.76 to 3.42 Ratio - Limited Slip - GM 12-Bolt - 8.875 in - GM Fullsize Truck 1961-80 21300XR-O DEI Turbo Shields use an the tubular design allows SCOBRS0054U0K01060 150-45-6712K Size:7-5/8+ (61+)

DEI Turbo Shields use an exclusive combination of premium heat resistant textiles and newly designed stainless steel attachment anchors

Hollow Carbon Fiber Collar with non-slip belt grips

Suspension Bars

Unique One-Piece Housing: The smooth one-piece sealed housing

52 ratio Magnum rockers and 7

Eaton Posi Differential 30 Spline 2.76 to 3.42 Ratio Limited Slip GM 12 Bolt 8.875 in GM Fullsize Truck 1961 80 21300XR O DEI Turbo Shields use an the tubular design allows SCOBRS0054U0K01060 150 45 6712K Size:7 5 8+ (61+) DEI Turbo Shields use an exclusive combination of premium heat resistant textiles and newly designed stainless steel attachment anchors Hollow Carbon Fiber Collar with non slip belt grips