David Rive
Senior Member
The mechanic who surveyed my new to me AT 34 recommended changing the rear engine mounts on the Cummins 330 hp engine. The boat is 13 years old. and has a bit of vibration at higher speeds. For not much more money I could change all 4 mounts, even though the front mounts seem fine. Opinions? - Is it worth doing all 4 at once?