Strange Shudder

[andyr1970]

Hi Guys
Looking for a bit of help im getting a Shudder at about 2k rpm in 3rd and sometimes 4th gear at 2k revs there is a new egr and just had the clutch and flywheel done doesn't do it all the time it does it a couple of times then nothing for a week any suggestions as to what it might be

 

[racT6bus]

I had something similar that happened intermittently, but gradually got worse - turned out to be the driveshaft and stub shaft - completely resolved once replaced.