Aluminum wheel corrosion welded (?) to hub

[beewstew]

Working on a poorly maintained 2004 xc70 - tonight it was brakes. The passenger rear wheel seems welded (by corrosion?) to the hub. With lugnuts out I've been pounding on the rim with a rubber hammer for two days - I've used most of a can of liquid wrench in the lugnut holes and the seam between the hub and the wheel. Any other tricks for breaking an aluminum rim loose from a steel hub?

Edit: resolved. Lowering half of a tire with loose lug nuts onto a 4x6 wasn't enough to break the wheel loose from the center hub flange. Hitting an 8' 4x4 post with a maul, with the wood bearing on the rim - across and underneath the rear axle, ended up being successful.

While hammering, a lock ring fell off some part of the rear axle/hub/shock etc. Thoughts on where it fell from?

Thanks for all the suggestions.

This lock ring fell off while I was pounding. Wonder if it's important?

4x4 post, running under the rear axles. Stacked 2x lumber so that the post hits the rim, not the tire, when I hit the other end of the post with a maul.

[DavidE7]

Strong heal kicks to the tire on alternating sides about a hundred times to rock the wheel back and forth to break the corrosion. Don't kick hard enough to knock the car off the floor jack, jack stands, or lift supporting the car. I found the kicks work better if you get under the car and kick the tire outward but the risk of the car falling on you is huge! I haven't had luck with sledge hammers because they just bounce off the tire.

[vtl]

Take another wheel, swing it and smack against your stuck wheel. I.e. what you do with rubber hammer, but now with sufficient mass and inertia.

[Krons]

There is an easier way. Loosen lug nuts to barely touching the wheel and slowly go for a drive, around a corner or roundabout is ideal. It’ll eventually break free.

I’ve learned to apply a light film of grease (or anti seize) to areas where wheel touches the rotor after that.

[dikidera]

There is an easier way. Loosen lug nuts to barely touching the wheel and slowly go for a drive, around a corner or roundabout is ideal. It’ll eventually break free.

I’ve learned to apply a light film of grease (or anti seize) to areas where wheel touches the rotor after that.

I would add to aim at the potholes.

[vtl]

There is an easier way. Loosen lug nuts to barely touching the wheel and slowly go for a drive, around a corner or roundabout is ideal. It’ll eventually break free.

I’ve learned to apply a light film of grease (or anti seize) to areas where wheel touches the rotor after that.

I would add to aim at the potholes.

I would add this is a call for troubles. Just take that spare wheel and smack the seized wheel off. Always works.

[Krons]

There is an easier way. Loosen lug nuts to barely touching the wheel and slowly go for a drive, around a corner or roundabout is ideal. It’ll eventually break free.

I’ve learned to apply a light film of grease (or anti seize) to areas where wheel touches the rotor after that.

I would add to aim at the potholes.

Too much force. I have a roundabout a few hundred yards from my house. One slow (10-15 mph) trip around and my seized wheel was loose.

[Krons]

There is an easier way. Loosen lug nuts to barely touching the wheel and slowly go for a drive, around a corner or roundabout is ideal. It’ll eventually break free.

I’ve learned to apply a light film of grease (or anti seize) to areas where wheel touches the rotor after that.

I would add to aim at the potholes.

I would add this is a call for troubles. Just take that spare wheel and smack the seized wheel off. Always works.

I’ve hurt myself or my cars too many times ‘smacking’.

Loosening the lug bolts (with all of them still threaded well onto the hub) and driving at 10-15 mph is not going to damage anything.

[dikidera]

There is an easier way. Loosen lug nuts to barely touching the wheel and slowly go for a drive, around a corner or roundabout is ideal. It’ll eventually break free.

I’ve learned to apply a light film of grease (or anti seize) to areas where wheel touches the rotor after that.

I would add to aim at the potholes.

I would add this is a call for troubles. Just take that spare wheel and smack the seized wheel off. Always works.

*in case of extreme welding* then

[abscate]

Worst one I ever had…4x4 long timber under car, propped to bear on wheel, then sledge from other side