Originally Posted by nsxtech
Inner joint is bad.... Inners don't make any click noise they just vibrate bad on accel in higher gears.... most noticible on stock tegs w/ light accel in thirg gear about 35-40 mph... Don't rule out that left axle just because it's been replaced. You don't know how good that inner joint was before they 'remanufactured' it...
You have a good point because I did notice the shaking a little bit after I replaced the axle that wasn't there before. It seems like it is coming from the passenger side though and that axle was replaced after the problem surfaced. It vibrates during all ranges of acceleration but worst under heavy acceleration from 40-70mph and it does start in third gear.