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Install Stub axles, interference

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Old Oct 31, 2020 | 06:49 PM
  #1  
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Default Install Stub axles, interference

77 vette. Stock rear end.
I just installed new side yokes (axle stubs) because they wore past the C clips.
The car is off the floor, tires removed.
When I turn the driveshaft, the side yoke and the half shaft hit causing the hub to bounce upwards (see picture).
It only happens on the right side of the rear.
The ujoint is installed correctly, the bearing caps are correctly positioned.
Wassup? Anyone seen this before?
Is there a right and left axle stub?
Can the short shafts be reversed?

Interference on these two points when the shaft is rotated
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Old Oct 31, 2020 | 07:33 PM
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Are the trailing arms the same distance from the floor.
The rear wheels should not be turned by engine power if the suspension is hanging down.
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Old Oct 31, 2020 | 11:14 PM
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It's often been said that what you see will happen with the trailing arms hanging. Lift them up and support them and you should find it works OK.
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Old Nov 1, 2020 | 09:13 AM
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Ditto here for the 2 responses above.
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Old Nov 1, 2020 | 10:08 AM
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Just too much U joint angle is all. It will be OK when the suspension is loaded.
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Old Sep 4, 2021 | 10:09 AM
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I have the same problem. And it is just fine when the suspension is loaded, but it still doesn't seem like a good scenerio. Does everybody just leave it alone or should you limit the suspension travel some how? Or maybe grind alittle more relief into the halfshafts or the side yoke? I can't imagine the racers leave that potential interference issue. Thanks in advance for any advice.
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Old Sep 4, 2021 | 11:45 AM
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The racers are not allowing the rear end to leave the ground, in fact I can not think of any situation where it would, unless you are driving 90 in San Francisco on Lombard Street. Chevy engineers never worried about this so no use to overthink it.
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Old Sep 4, 2021 | 12:10 PM
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I've seen the inside rear tire come off the ground plenty of times on tight road course racing. The suspension goes to the limits of it's travel often on even on a regular street car.
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Old Sep 4, 2021 | 12:49 PM
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Then do what you want and good luck
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Old Sep 5, 2021 | 07:22 PM
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A racer would use careful shock extension length to control the drop or even add limiting straps.
Binding a u-joint at speed would easily cause it to snap/bend.
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Old Sep 6, 2021 | 04:48 AM
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Originally Posted by leigh1322
A racer would use careful shock extension length to control the drop or even add limiting straps.
Binding a u-joint at speed would easily cause it to snap/bend.
Thankyou for the constructive advice. I appreciate it.
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