Over the last several months, I've had some posts about a vibration in my 245. We had done everything you could think of. drive line, motor mounts, timing, new exhaust system and hangers, etc etc. Last step was refacing flywheel, new clutch, pilot bearing, pilot bearing, all to no avail. Based on some comment here, I ordered another set of motor mounts, this time from Volvo. The difference between them and the 'OE' I had previously installed, was significant. The Volvo mounts are much softer, more forgiving. Same goes for the transmission mount.
Guess what? the vibration is gone!!. So for all you enthusiasts out there, pay the extra money and buy Volvo mounts. The difference in money was about $14/mount.
Jim