The part that broke on your Z was recently replaced on my Z and I can tell you I paid out $885.00. That did include a 4 wheel alignment as well. I don't know if this was a fair price but if your insurance deductible $ amount is significantly lower, A claim may be the way to go. This may be considered a chargeable collision with your insurance company so it could affect rates as well. You will need to decide what's best for your situation. BUT.... I really don't think your extended warranty company will cover the damage. Mine was grooved/micro cracked from a collision by a previous owner & the factory warranty could not be used in my case. Good luck! PS: I hope your wheel bearing/hub assembly is OK. Mine may also need replacing.