About four years ago I payed $400.00 for a FF job. Notice a leaking left seal last week and tried this plastic tool I bought for 6 bucks, it's called seal mate, It will clean out under the seal whatever it is causing the leak in 5 minutes. According to the seller, most seals will stop leaking after using this device unless the seal is broke. Worked like a charm!! Leak gone. In the future try this first.
Just read your pot hole thread. oh well.