'98 Accord vibrating while accelerating

My car starts shaking when I accelerate. It only happens when I get to around 50mph until I reach my cruising speed. Once I stop accelerating it stops shaking. I had the transmission replaced about a year and a half ago. Wonder if this might have something to do with it? Any suggestions?

Your tires could be out of balance, but since it happens only on acceleration it could be you motor mounts.
There have been quite a few disscussions about them here. Do a search.

Sam

Thanks, it was the motor mounts. Got to replace all four of them.