something broke

[littlebigrig6.0]

Yesterday I used my 4h to back my trailer up my driveway, as I got up the last 30ft or so I took it out of 4h and backed up, usually this takes it right out of 4. Any how I left my house and the truck seemed fine till about 15 mins later when I was on the highway when It starting vibrating real bad under my seat, and then I hear a loud squeal clunking sound, the squeal sounded like a bad bearing, it was all coming from more on the driver side under neath. So I got home looked under the truck and then I noticed U joints were locked, so some how my hubs did not disengage, Nothing under the truck looked out of place or broke, the U joints looked fine, so my dad fiddled with it for a bit and got them to disengage, took the truck back out on the highway, and no noise just a crap load of vibrating. Sorry for the long post, any ideas

[atvrider93]

your u-joints probably went bad after that which I think could cause that much vibration

[littlebigrig6.0]

anyway to tell

[Jonboywv12]

when you look at the u-joint is the little clip in there to keep it from moving around? if that is gone you basically need to get new ones. the vibration maybe coming from that as it turns if that makes an sense....that happened to me a while back but it was on rear drive shaft and it was right where the spline section is underneath it the u-joint there came loose and just raddled the whole thing apart

[littlebigrig6.0]

The vibrating is only when im driving, no turns, the faster I go the worst it gets. No I did have alot of problems with the 4h popping in and out when I was plowing last year, ford swore their was nothing wrong with it.

[Jonboywv12]

yeah its u-joints get those replaced. that is how mine was it would start at around 20ish...and go till about 40ish and then just go away. but when i was doing 40 that whole truck was just shaking like crazy it sounded like my engine was about to fall out it was terrible.

[littlebigrig6.0]

Ok so I took a look at the U-joints and they seem good, their tight and nothing looks out of place.

[Jonboywv12]

might be your transfer case and how it may not be disengaging....if its not that i am out of options...ill think about it what it may be.

[littlebigrig6.0]

K thanks alot

[Jonboywv12]

yeah dude no problem i hope it all works out for you....maybe you'll beat me to it.