JL724877
Member
I have been working on fixing everything I can on my 2017 1500 hemi. The next project on the list is to try to figure out what is causing my clunking sound and try to eliminate it. It started very early on in my trucks life like maybe 30,000 miles the truck now has 150,000. To me the sound seems to be coming from the middle or back of the drive line. It started as a clunk that would happen when the the transmission would down shift from 5th to 4th when coasting with foot off gas pedal then when I would hit the gas it would give a slight clunk it did this very infrequently in the beginning. Moving to current noise (I know I should have fixed a long time ago but here we are). I brought it into a Firestone maybe 40,000 miles ago and the best they could come up with was probably something in rear differential backlash or something else. I have changed the rear differential fluid maybe 10,000 miles ago and did not see any metal. Now the clunk is much louder and occurs much more frequently especially when the transmission down shifts from 5th to 4th. It also clunks in other gears occasionally but mostly 4th and 5th usually around 30mph. Also very infrequent a slight clunk at highway speeds. My best guess is it’s a drive shaft/u joint issue or read differential. I tried moving the driveshaft while in neutral and the rear wheels off the ground. It was making a similar sound when the wheels were spinning. When trying to push the driveshaft up and down it didn’t really have noticeable play to me but when rotating it you could move it maybe 1/4 inch without it turning if that makes sense. Essentially it felt like it had some wiggle in it before it’s engaging? Not sure if it’s supposed to have these noises when wiggling it but I will attach some videos for reference. The clunk is definitely getting worse and starting to produce more of a shimmy in the driveline if that makes sense like you can feel it more than before. Please review videos and let me know if this is normal stuff or where I should start. I think I could do the u joints myself and would love for this to be the easy solution but don’t want to tear it out and it be something else. Please help??
I also can’t currently figure out how to post the videos so help with that would also be awesome.
Hope these work.
share.icloud.com
share.icloud.com
share.icloud.com
share.icloud.com
I also can’t currently figure out how to post the videos so help with that would also be awesome.
Hope these work.
iCloud Photos - Apple iCloud
View, organize, and share photos and videos with iCloud Photos on the web. Changes will sync across your devices with iCloud.
share.icloud.com
iCloud Photos - Apple iCloud
View, organize, and share photos and videos with iCloud Photos on the web. Changes will sync across your devices with iCloud.
share.icloud.com
iCloud Photos - Apple iCloud
View, organize, and share photos and videos with iCloud Photos on the web. Changes will sync across your devices with iCloud.
share.icloud.com
iCloud Photos - Apple iCloud
View, organize, and share photos and videos with iCloud Photos on the web. Changes will sync across your devices with iCloud.
share.icloud.com
Last edited:
