I have a question. I have worked on the rear hub before but I have never had this problem I just came across. When I but the wheel back on the bike when I was done, the space between the small gear and the bike frame was bigger than normal. Also the hole wheel was off center. I have tried switching the cones and it did not help. Please help if you have an idea.

Is it a freewheel hub? It could be you have a bent axle or something.

If you have horizontal dropouts then you would need to make sure the wheel is centered before tightening it.

It is a freewheel hub but the axle is just fine and I don't have horizontal dropouts.

It's normal for the freewheel to be a little bit off and not perfectly concentric with the axle. If it's off center and you removed the cones, you might have reassembled it with the spacers and washers in the wrong position or forgot to put some of them back on. If you switched cones to new cones, they might not have the same dimensions. A more unlikely possibility is you put too many balls on one side but this would make it harder to put back into the frame.

I love games like this! OK, how big is it? How much bigger than normal?

I don't know the exact measurements but the freewheel lockring used to be really close to the frame but not touching. Now it is about 1/3 inch or more away. The big problem I have with it thought is the wheel in not centere with the frame.

I have tried rearranging all the pieces(remembering the the original order) and nothing has worked. My big problem is that the wheel/tire is not center with the frame which would end in other problems letter on.

What exactly did you do to your hub?
Did you take the axle all the way out and did you take the cones and spacers off the axle?

It *sounds* like you just didn't get things put back on in the right order at the right place and you just need to move things over or rearrange them.

Do you have the same amount of axle sticking out past the locknuts on both ends?

If the freewheel is further away from the dropout then you put too large a spacer on the right side instead of the left. That would make the wheel off-center toward the left. Note in the pic above that the spacer on the left is much thicker than on the right.

What I did was take it apart, clean it all and put it back together. That is all I did and yes, I have the same amount of axle on each end. Thank you for your time!

The spacer on the freewheel side has a smaller spacer then the other side. Would it hurt my bike if I don't have any spacer on the freewheel side and put it on the other side? Also I used all of the spacers that came off but I might have lost one but I don't think I did. If I just take ordinary washers that are the same size as the others could I put those on?

Freewheel hubs normally have more spacers on the freewheel side.

That does not make sense. Something is missing in your explanation, as having a smaller spacer does not match with having too much space.

As for spacers, any spacer you use just needs to have a large enough hole to fit over the axle but small enough overall diameter so it does not interfere with the freewheel. But adding spacers to the freewheel side will just move the wheel further to the right. I would strongly advise you to get the help of a bike co-op, knowledgeable friend or a bike shop.

Exactly what brand & model is this hub?
Maybe there's an exploded view of it.