If you can afford, replace all engine / transmission supports at the same time ... use original they have better rubber albeit more expensive ...
Sabi sa akin dati kung kaya ny budget, maganda palitan lahat ng same kind.
Para same ang condition lahat ng rubber at balanced ang distribution ng vibration.
Kung isa lang, iyong newest ang sasalo ng vibration kasi ito pinaka pliant, iyong iba malutong na.