Little things can make a big difference. In the case of wheel covers, maybe this is a practical demonstration of The Pareto Principle.
I bought a set of stainless steel covers (AKA "hubcaps") at The Wheel Pros for $250.95, including GST. Here is a picture with the old covers on top, and the shiny new ones on the bottom.
On my rims, the lug nuts have to fit inside the lug caps on the wheel cover. It is a tight fit and if they aren't centred correctly, you can damage the lug caps. You can't see the lugs under the wheel cover, so it is easy to be off-centre.
|The lug is off centre.|
|Hammer the cover onto the rim with a rubber mallet.|
The problem with that approach is that the lug covers may become loose if you repeatedly remove and replace them.
Here is a better method I'll try next time, but it will require a little more care. Look for the valve through one of the holes around the outside of the wheel cover. When the lugs are properly centred, the valve will also be centred in the hole. Keep the valve lined up as you hammer the cover into place
|Valve is centred in the hole.|
Before you install hubcaps on your truck or motorhome, you might want to read a more recent post as a bit of a cautionary tale (click here).