Sidewall height dropped .92" and overall height increase was just .16". Gained a little over a inch width over the stock 18" tires. These have a 80,000 mile warranty so I hope they last awhile. The stock Michelins only had 20,000 on them but one of them had a slow leak that couldn't be fixed and it made no sense to buy one tire. Got a good deal 2 years ago on brand new Lincoln wheels so I picked up some black Ford center caps and made use of them. Was a little worried if they would be too wide.