i'm having problems eliminating a bit of vibration on my 02 ecsb.........i installed a 4link and truck is lowered.........pinion angle is set right but i still get a little vibration.......i think the vibration is coming from the 2 piece drive shaft and or carrier bearing......????maybe..........i think the factory drive shaft is steel?.......QUESTION IS: would it be good to put a one piece aluminum drive shaft in and cut out the carrier bearing and bracket?......will it hurt anything or help?........