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1980 Rear end clunk!

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Old Jan 16, 2021 | 11:24 AM
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Default 1980 Rear end clunk!

Hey Everyone,

Working away on this 1980 project and now at the rear end. Its got a good clunk when putting it into gear. What am I into on pulling this apart and any guesses on what it is?

Thanx
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Old Jan 16, 2021 | 11:28 AM
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look at the rubber bushings attaching the front differential bracket to the frame.
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Old Jan 16, 2021 | 11:41 AM
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Changed it as well as all the U joints. Should have noted that!
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Old Jan 16, 2021 | 04:03 PM
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Assuming your idle speed is at spec. You might have too much backlash between the ring and pinion, How many miles on this rear? Trying to readjust backlash on a used ring and pinion is dicey. You might develop a whine if you bring it back to spec. Also check the trans mount. Sometimes they wear/break.
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