The left rear wheel on the 9" has a very slight wobble that you can hardly notice. The wife noticed it when she was following me. I changed the rear wheels left to right and the wobble didnt change. And now it just started to leak. It has one of thoses unit bearings that are sealed. So can a bad bearing cause the wheel to wobble?

 

A bad bearing shouldn't cause a wobble but a bent axle will ruin a bearing and seal.
-John

 

When you have the axle out changing the bearings and seal, have a local with a lathe chuck it up and spin it to see if its straight. Unless you see an obvious problem. More than once I have seen bearings run so long after they should have been changed that they wore a groove into the axle itself, some even lost their wheel from it..

 

it kinda sounds like your axle shaft might be bent

 

It's more likely the flange is bent rather than the shaft.

Josh

 

hi, new to this site, hope I am posting correctly. I bought an 86 ford F250 6.9 2wd last June. It has a slide in camper on it. I got a flat tire with the camper on it. The tires were bought in 05 and had only 5000 miles on it. the tire separated around the edges. Jacked up the camper, changed the tire and had no issue until I picked it up from the ford dealer after having the ignition cylinder replaced. I noticed right away that there was a wobble driving off the lot. Drove to a tire place and had two new rear tires installed. The wobble is now worse. Took truck back, they re-balanced and re-installed new tires. Wobble seems worse. Any ideas? Jennie