A vibration insulating pad through which a center member is elastically connected to a vehicle body in an automotive vehicle. The vibration insulating pad is formed of rubber and to be disposed in an installation hole formed in the center member. The vibration insulating pad comprises a head section and a body section which are coaxially integral with each other through a neck section. A generally annular groove is formed between the head and body sections and around the neck section. An axially extending central through-hole is formed throughout the head, neck and body sections. Additionally, an axially extending slit is continuously formed extending from the inner to outer surfaces of the pad. The slit is located generally tangential with respect to the through-hole thereby facilitating deforming the pad long and narrow by hands of an operator prior to the installation operation for the pad.