you cannot charge anything you want because its America, if you charge a old lady $50.00 bucks to put on a new blade on a mower and few days later she finds out it should have cost most $5.00 bucks you will get sued and have to refund at very least $45.00 and court fees and in most cases the judge will see you took advantage of a person they would make you pay back $49.00 plus court costs....... I called 2 dealers, $70.00 and $73.00 a hour. I usually do all my own work but don't feel like messing with this. I do have a relationship with one dealer close to me but I have 2 dealers 15 miles away that have real smart mechanics and I rather pay them to fix it right faster then the shop I do deal with all the time even thought they are $66.00 a hour so for $7.00 bucks more a hour it went to that shop and a three day commercial wait, $70. shop was a week and 66 was a week.