You might not have to replace them. My parking brake stuck on, I floored it in reverse and slammed the brakes and it popped off. You can also get under the car and pry the spring arm back (the piece the cable attaches to). They usually stick because the spring and the arm become seased. If you have the calipers off get some penetrating grease and soak the parking brake arm, you'll have to work it back and forth and up and down a little but you should be able to get it moving freely again. I've had to do this with mine. Might be a cheaper alternative till the cash flow's a little better. I end up keeping a screw driver in the trunk just in case that brake gets stuck again.