Brakes (I hope) making a thumping sound - Hemi Truck Club
 
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Old 01-05-2021, 01:21 PM   #1
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Brakes (I hope) making a thumping sound

When I am at a complete stop and let off the brakes, it fills like the rear brakes are slamming open making a noticeable thump. Only happens when I am stopped, not slowing. Any ideas?

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Old 01-05-2021, 02:32 PM   #2
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Check the brake hoses to the rear wheels and the one going to the hard lines on top of the differential.
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Old 01-06-2021, 12:08 PM   #3
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What am I to be looking for?
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Old 01-06-2021, 03:32 PM   #4
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Quote:
Originally Posted by jwberry View Post
What am I to be looking for?
Check for damage and to see if any are collapsed. Also check the brake pads to be sure the pad material hasn't separated from the steel plate. And check that the parking brake shoes haven't separated. Check calipers for smooth movement when applied.
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Old 01-07-2021, 06:14 PM   #5
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Might be your driveshaft yoke at the transmission moving when you let off the brakes. Pull the driveshaft, marking it first in relation to the rear end so you can reinstall it in the same position, and pull the yoke from the output shaft of the transmission. Lubricate the shaft splines with wheel bearing grease and reassemble. Sometimes the splines get slightly rusty and the yoke doesn't slide easily along the splines.
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Old 01-13-2021, 08:52 PM   #6
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Check the slides make sure they are free will have to remove calipers to see. Next remove the driveshaft from the rear yoke and make sure your pinion nut is tight and not backing off. While there also check the u joint for binding. Can you post a video of it to you tube and link it here
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