Quality wheel spacers would be preferred but some members have found a sufficient option is to just modify the grease cap attached to the hub by flattening it slightly and also removing material from the inside of the center caps. Note this is only needed for the fronts. My recommendation is to proceed with the install and have the shop send the caps home with you separately until you decide which direction you want to go.Help - I'm having Tundra 18's put on today, and was just informed by the shop that the center caps don't fit on the front wheels when installed. Will someone remind me what the fix is for this problem? I've tried searching but can't seem to lay hands on it.