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2013 Chevrolet Suburban
Platform: GMT 400, 800, 900

07 suburban clunk only when backing up

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Old December 8th, 2018, 11:09 AM
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Default 07 suburban clunk only when backing up
i recently replaced all brakes and rotors and front upper control arms, tie rods, lower ball joints sway bar links and cv axles. but after about two weeks now I have a loud clunk when I back up. It only clunks once when I back up then it’s good. It doesn’t matter if I’m backing up straight or turning. Any help would be greatly appreciated.
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Old December 9th, 2018, 11:12 AM
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i would check the rear drive shaft u-joints for play.

check for excess backlash in the rear diff crown and pinion.
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