Originally Posted by Dread53

Vibration is a very complex issue, usually solved by adding a buttload of weight someplace specific. Think about the shaft in the S197s - two piece, 42 pounds with 3 u-joints and a carrier bearing. Do you have any idea what the production costs of that are compared to a 1 piece? There has to be a REALLY good reason they did that, and that reason is vibration. I have the Drive Shaft Shop version in my car and have a slight rythmic vibration at highway speeds, which I'm willing to live with for the almost 20 pounds it drops.


An old case-in-point. When the F150's were reworked for '97 they ended up with a severe vibration in the steering wheel at just off-idle when getting moving. It took the engineers 6 months to figure it out and the fix finally arrived. It was a three pound weight, attached to the exhaust pipe behind the rear axle. The problem was a resonant vibration setting up in the exhaust that transmitted to the steering wheel. So, you want to try messing with a slight vibration after changing a driveshaft?