yeah something wasn't installed right. the pinion gear sounds like it either riding to far away from the ring gear ( like mentioned above) or it is riding in too close to it. ask him if he even checked the wear pattern. not really saying anything about your buddy, but my buddy also has been setting gears up for years and i have finally seen him do it. no gauges,no testing, no nothing. just slaps it together and goes by feel <img src="/forums/images/graemlins/shame.gif" alt="" />..no thanks,i'll take a bit longer and make sure mine are right <img src="/forums/images/graemlins/smile.gif" alt="" />