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Weird heavy vibration when decelerating from 50 mph

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Old Dec 14, 2020 | 12:44 PM
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Default Weird heavy vibration when decelerating from 50 mph

Got 03 ram 1500 4.7. Outta nowhere today driving home @ 60mph. When i let off the gas there was a heavy deep vibration. Felt like it was coming from behind driver seat somewhere. After the initial noise i started basically testing the parameters that cause this unusual vibration. Brakes or no brakes still vibration. Doesnt occur at low speeds say 20mph. From what i gather if i decelerate from 50 mph it starts and last til i slow to approximately 20 mph. From 20 mph and below no vibration. Ive done my research on it but experience trumps articles every time in my opinion. Ive read possible rear diff fluid low, thin or damaged. Also read rear u-joint. If anyone knows the vibration i speak of and could give me some insight id be extremely grateful.
 
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Old Dec 14, 2020 | 02:05 PM
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Think I would at least take a look at the joints in the rear shaft, and also take a look at fluid level.

Was your truck subject to the recall for the rear pinion nut??
 
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Old Dec 14, 2020 | 02:17 PM
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Originally Posted by HeyYou
Think I would at least take a look at the joints in the rear shaft, and also take a look at fluid level.

Was your truck subject to the recall for the rear pinion nut??
ya know bro i bought her used n ill be honest i never bothered to check the recalls on it. I def will now though. Yea im gonna start with wheel bearing. Move to rear diff fluid n then ill check u joints. Plans anyway. Man when i bought it the ball joints went out n tie rod ends too just after buying. Ive put alot of wrench time in it to get it right. I travel from nc to bmore alot so def needs to be right. Roads in Baltimore like dang Baghdad. I appreciate the insight bro. Im chkn recalls now.
 
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Old Dec 14, 2020 | 04:29 PM
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Originally Posted by Dennis Jordan
ya know bro i bought her used n ill be honest i never bothered to check the recalls on it. I def will now though. Yea im gonna start with wheel bearing. Move to rear diff fluid n then ill check u joints. Plans anyway. Man when i bought it the ball joints went out n tie rod ends too just after buying. Ive put alot of wrench time in it to get it right. I travel from nc to bmore alot so def needs to be right. Roads in Baltimore like dang Baghdad. I appreciate the insight bro. Im chkn recalls now.
Yeah, roads in michigan suck too. I live on a dirt road, and during certain seasons of the year, it looks more like lunar landscape, than a road.
 
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Old Dec 16, 2020 | 02:46 PM
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Originally Posted by HeyYou
Yeah, roads in michigan suck too. I live on a dirt road, and during certain seasons of the year, it looks more like lunar landscape, than a road.
lmfao thats too funny bro. So its been a few days. Rear diff fluid is full not burned up. And i haven't had it happen again so im gonna leave it be til something else occurs. Hey i appreciate your input bro.
 
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Old Dec 16, 2020 | 03:07 PM
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Any loose nuts on the driveshaft?
 
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Old Dec 16, 2020 | 03:29 PM
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Only the one behind the steering wheel. (that seems to be most of MY trucks issues.......)
 
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Old Dec 16, 2020 | 04:31 PM
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Originally Posted by HeyYou
Only the one behind the steering wheel. (that seems to be most of MY trucks issues.......)
Boy I really lined that one up for you, didn't I?
 
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Old Dec 16, 2020 | 08:22 PM
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Originally Posted by Dodgevity
Boy I really lined that one up for you, didn't I?
Don't think it wasn't appreciated.
 
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Old Oct 13, 2022 | 12:37 AM
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Originally Posted by Dennis Jordan
Got 03 ram 1500 4.7. Outta nowhere today driving home @ 60mph. When i let off the gas there was a heavy deep vibration. Felt like it was coming from behind driver seat somewhere. After the initial noise i started basically testing the parameters that cause this unusual vibration. Brakes or no brakes still vibration. Doesnt occur at low speeds say 20mph. From what i gather if i decelerate from 50 mph it starts and last til i slow to approximately 20 mph. From 20 mph and below no vibration. Ive done my research on it but experience trumps articles every time in my opinion. Ive read possible rear diff fluid low, thin or damaged. Also read rear u-joint. If anyone knows the vibration i speak of and could give me some insight id be extremely grateful.
I have the same exact problem. I have a dodge ram 1500 that shakes as I deaccelerate from 50 mph. I have replaced the U joints. Do you have any other advice? Thanks
 
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