Home >> Chevrolet >> 1989 >> G 10 Van V8-350 5.7L >> Repair and Diagnosis >> Specifications >> Mechanical Specifications >> Differential Assembly >> Rear Axle >> Locking Differential (Eaton) >> 10 1/2 Inch Ring Gear >> Reaction Block and Thrust Washer Specifications >> Reaction Block Size - 10 1/2 Inch