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Old Jul 25, 2022 | 07:19 AM
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Default half shaft length

Are both half shafts the same? I “ string aligned” the rear yesterday, and the driver side assembly appears to stick out about 3/8” farther off center than the other. If not that, then the entire rear end assy must be slightly offset to the driver side.
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Old Jul 25, 2022 | 07:23 AM
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Both half shafts are the same. Something is off with your car. Perhaps body?
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Old Jul 25, 2022 | 10:12 AM
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Check the stub axles where they exit the differential, one may be pulling out after the spring clip has worn off the shaft.
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Old Jul 25, 2022 | 10:13 AM
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Originally Posted by 4-vettes
Both half shafts are the same. Something is off with your car. Perhaps body?
I have the frame off. Measured at both ends, determined a c/l, and then measured 30-3/8” from that c/l on both sides. Pulled a string from end to end, then unloaded the rear suspension, and leveled the half shafts to simulate ride height.
adjusted camber to 0 degrees, and adjusted toe to dead straight.
From there, you can see the passenger side is inboard about 1/4-3/8” when compared to the DS.
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Old Jul 25, 2022 | 12:38 PM
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A lot of c3's have rear wheel/tires that stick out farther on 1 side in the back.
I don't know why, but it's been discussed here a few times, and is not unusual.
I read about it in the past, and went out and checked.
Yep, mine is different.
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Old Jul 25, 2022 | 10:23 PM
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Early half shafts measured 13 7/8"
'80 to '82 are 13 1/2"
Are both of yours the same size?
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