Refer to the 1 u b r i c a t i o n section of this manual forl lubricant recommendations and inspection intervals REAR AXLE NOISE DIAGNOSIS Mechanical failures ... noise will aid even the beginner in detecti ing allegea axle noises Axle noises fall into two categories gear noise and bearing noise Gear Noise Abnormal gear noise can be recognized since ... pipe or suitable socket on an arbor press fig 4 CORVAIR SHOPMANUAL