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Author Topic: Rear axle  (Read 1203 times)
Jon Mello
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« on: May 02, 2011, 02:43:21 PM »

Here's an article from 1968 showing one method of how they beefed up rear spring perches on the axle back then.
No matter if you're road racing or drag racing, this is a wise thing to do because the factory welds in this area are
only suitable for going back and forth to the grocery store.





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Jon Mello
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Jon Mello
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« Reply #1 on: May 04, 2011, 10:53:15 AM »

Chevrolet Engineering was well aware of the limits of their rear axle spring perches in performance applications.
Below is the Engineering Service Letter which shows what they recommended as a fix. Always use u-bolts to
help keep the axle firmly attached to the spring, preferably two per side on a race car. Increasing the diameter
of the u-bolts is a good idea too.





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Jon Mello
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