I recently had an outer cv joint completely break off of the wheel while in the mountains. The loose cv joint also messed up the wheel bearing after knocking around for a while. I had the entire CV shaft replaced, along with both left and right hub assemblies.(The left was previously messed up). I also put new tires on the truck. (265/70/17 Goodyear Wrangler AT/S) After driving on the highway, I notice a relatively large vibration while traveling at relatively high speeds, anywhere from 65-85.

1. What could be causing this vibration assuming the tires are correctly balanced, being that the brand new tires were just put on?

2. Is there anything that I need to do or should do adjustment wise now that the truck has two new hub assemblies as well as a new cv halfshaft? Do I need to get the truck aligned?

1999 F150 4x4 Ex Cab 5.4 V8

Thanks.

 

I know we've run into bad axles occasionaly out of the box. If they weren't assembles correctly they can cause a vibration.

 

I'm having a very similar problem and would like to hear more if you have anything. I have a 1999 F-150 with a V-6. Last November, I had new Goodyear Wrangler AT/S tires put on my truck for the PA winter. In February, I started to get a very serious vibration at exactly the speeds you indicate 65-85mph. I now have the Goodyear Mechanic I use completely stumped. He has replaced all of the tires for me free of charge, and I have paid more than 1,000 dollars having my driveshaft re-balanced and new U-joints installed in the drivetrain. The entire vehicle shakes, and seems worst in the cab. I find it interesting that we have had the problem shortly after purchasing the same tires, but I don't think that is it. Let me know if you've found anything else out please..Thanks

 

Well it turns out that one of my assumptions was wrong. I thought that because I just purchased new tires, they would be correctly blanced. Thus I spent time trying to figure out what else could be wrong. I then decided to take the tires back to the shop and have them re-balanced. Problem fixed. I have found out that some shops balance tires a whole lot better than others. I'd take the tires to a different shop and mention that other shops couldn't get the balance right. They will probably put a little extra effort into being the shop that got it right. Let me know what happens.