7.3 engine vibration

[trogr]

97 7.3 370000.miles oil changed 500 mi ago. has engine vibration that is getting worse. always present but more at 1800 rpm. just started vibration about 2000 mi ago. runs fine . no loss of power. no smoke. I fear a main bearing or something. any ideas. please help, cannot afford a disaster now

[catlinB]

do u kno what kind of clutch you have??
if you have the dual mass flywheel clutch setup, that's what id say it is.

[trogr]

I put in a LUK solid clutch at 200000 mi. Replaced the clutch throw out bearing 15000 mi ago. Clutch in good shape after new bearing. Engine vibe present with clutch in or out.

[catlinB]

check your engine mounts and the transmission crossmember and mounts