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Discussion Starter · #1 · (Edited)
My truck has developed a vibration while on a road trip to the Washington, DC area. It started while driving through WV on I-64, which is pretty bumpy around Beckley. The vibration shows up above 50mph (when the torque converter locks up) and appears to go away above 75mph. It also goes away when I let off the accelerator pedal. I am roughly 600 miles from home and would like to make it home on Wednesday. Any thoughts on what the issue may be?
 

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Discussion Starter · #2 ·
Anyone have any feedback at all?
 

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I don't know what the problem could be but if your near Haymarket, Virginia, your welcome to come by. I have a lift at my house if you want to put it up in the air to check it out underneath.
 

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I know it sounds crazy, but check your U-Joints..... Mine did the same thing when my rear U-Joint next to the diff started going out. I was about 40 or 50 Miles from the nearest shop and towing my 5th wheel. I bit the bullet, spent the weekend at the dunes and limped home.....
 

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check the u joints and make sure u have proper air pressure in the tires and that they are still proplerly balanced sounds to me like they got to much road force
 

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Discussion Starter · #6 ·
I am suspecting the rear u-joint as well. At a glance, it looks OK, but I haven't been able to crawl under and check it out thoroughly. My air pressures are good and my fuel mileage is on target maybe even better than usual for the type of driving I have been doing. Hopefully I'll make it home today! Thanks for the tips!
 

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The same thing happened to me and I checked my u joints and they all looked alright so i wasnt sure where to look and after a while i still couldnt figure it out. So i crawled underneath just to double check and sure enough my rear u joint was going out. I maybe put on about another couple hundred miles and the u joint still wasnt super bad but you could at least notice it now. Hope that helps.
 

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Discussion Starter · #8 ·
I made it home, 600 miles without any problems. Tomorrow, the truck goes on the lift for a thorough inspection. Thanks for the advice!
 

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Discussion Starter · #9 ·
Driveshaft u-joints turned out to be the problem. They appeared OK while in VA, but when I got home, there was a lot of slop in the rear u-joint. I'm in the middle of replacing them right now. The parts from Napa are greasable, unlike the factory crap. I'll eventually have all greasable u and ball joints!!! "Permanently Lubricated" components are junk in my opinion.
 
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