For what reason would the tail shaft of a 727 explode at a cruising speed?
Boom
- Thread starter polara71
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C Body Bob
Old Man with a Hat
Sprag or overrun bearing failed.
Just the tailshaft?
There's not much going on inside. The governor and the speedometer gear. I suppose the governor could come apart... But I've never seen that happen.
I've also heard of bad motor mounts and a stiff trans mount causing cracking.
There's not much going on inside. The governor and the speedometer gear. I suppose the governor could come apart... But I've never seen that happen.
I've also heard of bad motor mounts and a stiff trans mount causing cracking.
That spins up the front (I think) drum and takes the whole case out. The tailshaft stays in one piece.
I was told if not the U joint then bearings or governor .
Horrible feeling at 65 mph, pictures to follow , Tomorrow .
Horrible feeling at 65 mph, pictures to follow , Tomorrow .
Yea, A u-joint or drive shaft problem could probably cause it too.
C Body Bob
Old Man with a Hat
Ive heard of tailshafts cracking from a bad trans mount. Never explode.
300rag
It's Not Going to Shift Itself
That doesn't sound good.
Transmission and engine mounts are / were good.
The Captain
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Neutral drop at Carlisle
Sorry to hear that Dave!
I would replace the U-joints and have the driveshaft spin balanced too.
I would replace the U-joints and have the driveshaft spin balanced too.
Years ago when I was younger than 22 I would do a neutral drop for any reason. After that I learned, no more. I was able to swap a 727 on my back in four hours with only a floor jack and hand tools
The driveshaft is all banged up after apparently hitting another car and the Jersey barrier
LocuMob
Fluid Technician with a hat
That sucks. I'm replacing my u joints this week, been needing to do so anyways.
No warning? Just exploded? Usually a very bad violent vibration for a few seconds and a lot of noise.
barnfind
Old Man with a Hat
Hope it didn't hurt the pans..
I quit doing neutral drops in my cars 40 years ago. LOL.
Nope, I just commented to Diane how well the car is riding, nice and smooth....A few minutes go by
BOOM!
Then the VIOLENT vibration and I mean VIOLENT. Smoke out of the back of the car, that was the transmission fluid dumping out. Not sure how the floor pans are , I was amazed that the gas tank, rear and exterior metal and trim suffered NO damage
Ive broken U joints before, engine mounts, had rears lock up while going down the road. This was much worse .... My first thought was something let go on the front end, like a joint or TRE
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