If your car's flexplate is damaged, you'll need to replace it. The cost of replacing a flexplate will vary depending on the make and model of your car. Expect to pay between $200 and $500 for the part itself. Labor costs will vary depending on the shop you take your car to, but expect to pay around $100-$200 for labor. So all in all, you're looking at a repair bill of around $300-$700.