In another 4 1/2 months I'll have had it for a year. They seem to be just as reliable as any other DSM , which means they will last forever and then bite you in the ass. I drove mine to NY from Colorado , and back. About 4000 highway miles at 90+ mph with no incidents. Mine also had the transfer-case recall done and a new T-belt when I bought it.
Do you mean it vibrates at certain mph speeds , or only beyond certain rpm's , there is a big difference between the two .
