motor mounts

i need motor mounts so i know the car will shake, but when im at a stop light there is a rhythmic shake in drive, i put it into nuetral and it still does it bt a little less, is this tranny problem or engine problem. need some help ASAP what could it be and how to fix it.

Most likely the shake is caused by bad motor mounts like you said. Another possibility is that your idle is set too low. Sorry, I don’t know automatics; I’m not sure how to suggest you fix bad idle…besides looking at a manual or taking it to a shop.

have you trieed searching?