It took me 2 hours with the right tools to replace a broken front ABS tone ring on my 2005 Escape. A certified mechanic will tell you that the assembly it belongs to needs to be replaced (this is the official, "correct" way and costs over $400), but with a little technical know-how you can do it for Get $8 done. and some elbow grease. Search the internet for tutorials on how to do this - basically you need wrenches, a wire brush, a blowtorch and some time. (Although the PB Blaster helps too!)