NJFBOA - Home of New Jersey's Camaros and Firebirds - View Single Post

Mark42 · 03-11-2010, 07:53 AM

I would think that a tail shaft vibration would only happen when the bearing is very worn. IE if there is only 5, 8, or 10 thousandths play in the drive shaft right at the tail shaft, with such a small diameter rotating mass, it would be hard to get a vibration strong enough to shake anything. Maybe if there is 30 thousandths run out, but then the tail shaft seal gets stretched out or chewed up and there is a leak.

What I am getting at is no leaking seal usually means the tail shaft bearing is not worn.

And if you can not feel any significan play, IE get a clunking sound by grabbing the yoke with both hands and forcing up/down or side/side then there is probably not enough wear to cause vibration.

Of course, I could be wrong. All complaints/posts to the contrary to the should be sent to President Obama, because he really cares.

03-11-2010, 07:53 AM	#58
Mark42 Join Date: Oct 2009 Posts: 443 iTrader: (0)	I would think that a tail shaft vibration would only happen when the bearing is very worn. IE if there is only 5, 8, or 10 thousandths play in the drive shaft right at the tail shaft, with such a small diameter rotating mass, it would be hard to get a vibration strong enough to shake anything. Maybe if there is 30 thousandths run out, but then the tail shaft seal gets stretched out or chewed up and there is a leak. What I am getting at is no leaking seal usually means the tail shaft bearing is not worn. And if you can not feel any significan play, IE get a clunking sound by grabbing the yoke with both hands and forcing up/down or side/side then there is probably not enough wear to cause vibration. Of course, I could be wrong. All complaints/posts to the contrary to the should be sent to President Obama, because he really cares. __________________ 1998 Firebird Coupe Mods: 3.73 Gears, Eaton TrueTrac, PCM Tune, LS1 Aluminum Drive Shaft, Cold Air Intake, 180 Thermostat, Magnaflow Cat-Back Exhaust, Moog LCA busings. My Firebird Projects : Click Here Last edited by Mark42; 03-11-2010 at 07:58 AM.