I have a 2000 f250 crew cab short bed 7.3 on a 6inch bds lift and 37 inch tires. When I accelerate pretty much any load above 1200 rpms I can feel a vibration, kinda feels like it may be coming from the front left but I'm not sure. I have heard that a wheel bearing going out can cause this, would this maybe be what's causing it? I thought wheel bearing because it kind of sounds like there's a howl when decelerating, probably when accelerating as well but the trucks too loud and I can't hear it. or also have heard motor mount gone bad, I've also heard ujoints but the ujoints were done this summer. the front ujoint is bad but the front driveshaft shouldn't be turning when out of 4x4 and hubs unlocked. any help would be very appreciated, thanks!

 

The most common cause of vibration on acceleration in lifted truck is the carrier bearing not being shimed or shimmed enough I've never heard of a wheel brearing causing that but that doesn't mean it's not possible. I'd start by crawling under it and seeing if any of the u joints or carrier bearing have any play in them and see if the bearing is indeed spaced down the 2 piece drive shaft needs to be straight. Did you sell the black truck?

 

thanks for the info, I'll crawl under there and see if that's the case. And I didn't sell the black truck, we put it in storage. With it being my dads I have big plans for it one day once I have the money. Gonna bring it back out this summer probably just for an extra vehicle

 

Crawled under the truck, i saw no shims at all and it looks like it could be straightened out to me. I took a pic to see what you think. Also would a carrier bearing drop bracket work as wel? Or should i just go for the shims?

 

Shims and have the driveline completely rebuilt and balanced with new carrier bearing.