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Old Jun 10, 2021 | 03:14 PM
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Default Axle shafts

Are all axles the same? I have a 2016 a8 z51. Broken axle. Need to order some and there’s so many different ones. Any help appreciated.
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Old Jun 10, 2021 | 09:47 PM
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Originally Posted by KY_corvette
Are all axles the same? I have a 2016 a8 z51. Broken axle. Need to order some and there’s so many different ones. Any help appreciated.
Left and right are different, to avoid torsional resonance and wheel hop. That's the extent of my knowledge.
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Old Jun 10, 2021 | 09:48 PM
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Sorry, have to ask. How did you break and axle and what broke? Good luck with the repairs.
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Old Jun 10, 2021 | 10:30 PM
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Bolt on car… heads, cam, intake, cai, stall. Just had got the new drag radials. Car was wheel hopping on street tires. So fast forward. New Mickey Thompson’s. Did a burnout on the street where I make test passes down by the house. Loaded up the suspension and snap. Sheared the spider gears and snapped driver side axle. It snapped where it tapers down. I picked up a new gm diff but axles are in Fort Worth and like 2 weeks out. So I was wondering if I could just pick up a z06 or z51 axle and it be a match. For some reason the gm service dept won’t tell me part numbers to cross reference and I’ve looked all over with mixed reviews. Saying the rh is larger in diameter than the left and that only certain years interchange. Was hoping someone has some input that has been in the situation.

Last edited by KY_corvette; Jun 10, 2021 at 10:31 PM.
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Old Jun 11, 2021 | 10:20 AM
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Awesome, but sorry for the destruction. Good luck with the rebuild. Maybe repost in the Technical Forum.
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Old Jun 11, 2021 | 03:46 PM
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Whoever owned the car before me. Already put a rh in the lh. So apparently they interchange from side to side.

So if anyone runs across the problem. They charge side to side.
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Old Jun 11, 2021 | 05:01 PM
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Originally Posted by KY_corvette
Whoever owned the car before me. Already put a rh in the lh. So apparently they interchange from side to side.

So if anyone runs across the problem. They charge side to side.
They should be.
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Old Jun 11, 2021 | 05:04 PM
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Originally Posted by KY_corvette
Whoever owned the car before me. Already put a rh in the lh. So apparently they interchange from side to side.

So if anyone runs across the problem. They charge side to side.
You didn't snap the shaft. You snapped the cage that holds the bearings that goes on the race.
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Old Jun 11, 2021 | 08:46 PM
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If I remember correctly...when I was at BG to watch my car being built the axle shafts for the Z's were thicker than for the non Z but fit both cars.
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Old Jun 11, 2021 | 11:47 PM
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They do fit. I just put 2 zo6 axles in. Back up and going.
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Old Jun 12, 2021 | 11:25 AM
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Originally Posted by KY_corvette
They do fit. I just put 2 zo6 axles in. Back up and going.
Did you notice a difference between your old axles and the new Z06 axles? Thicker? More substantial? Anything?
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Old Jun 12, 2021 | 02:53 PM
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Way thicker. Heavier. Just more all around.


The one that’s busted is a bigger one anyway from the right side that was installed on the left. But the z axle is bigger than either.
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