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Strange behavior

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Old May 22, 2014 | 08:27 PM
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Default Strange behavior

I have a 2007 z51 manual with an e-force supercharger with 550 RWHP
Today I was at WOT in third and at 5000 rpm the vette was like tamped at the left rear, passing the fourth she gave me the same thing at 5000 rpm. Arriving at home, checking if it was not a defective tie rod or other thing I realized that the left seal of the differential was beginning to leak. (fresh and clear differential oil)
Do you think I have a differential problem ?
How the shaft can damage the seal in these conditions ?
Is this a known problem ?

Thanks !

Eric
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Old May 22, 2014 | 09:59 PM
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I don't know if this helps, but I have an 08 Z51 and when I was getting a rear right stud replaced the vette tech saw the right rear axle seal was leaking. They changed it under CPO warranty luckily because it's around a 4-6 hr job. I didn't have any symptoms at the time other than a stud missing which was most likely due to a pothole.
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Old May 22, 2014 | 10:17 PM
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I gotta ask.... what was your speed at 5000 rpm in 4th?
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Old May 23, 2014 | 01:23 PM
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Originally Posted by CelestialShow
I gotta ask.... what was your speed at 5000 rpm in 4th?
It would be around 120 mph, give or take a few. 6k is around the 140 range
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Old May 23, 2014 | 09:24 PM
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Originally Posted by Seadawg
It would be around 120 mph, give or take a few. 6k is around the 140 range
In third at 6300 rpm I was at 173 km/h (109mph) and at 220 km/h (136 mph) at 6000 rpm in 4th (logged whith HPTuners ;-))
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Old May 24, 2014 | 09:53 PM
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Originally Posted by Jimmy77
In third at 6300 rpm I was at 173 km/h (109mph) and at 220 km/h (136 mph) at 6000 rpm in 4th (logged whith HPTuners ;-))
Ok, today I changed the seal, I have not seen any damage

But when I removed the shaft, I discovered a play about .005" in the splines with the hub and bearing and the shaft. I check the other side and same play
That explains the "tic" "tic" I always hear when I start quietly at green light

Is that normal ?

Last edited by Jimmy77; May 24, 2014 at 09:57 PM.
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Old May 25, 2014 | 08:19 PM
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The splines should have been lightly coated with white grease and NUT that secures the CV Shaft to the hub need to be TORQUED to 118 ft/lbs

Bill
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Old May 26, 2014 | 10:02 PM
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Originally Posted by Bill Curlee
The splines should have been lightly coated with white grease and NUT that secures the CV Shaft to the hub need to be TORQUED to 118 ft/lbs

Bill
Thanks !!
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