Njzkish:The issue is that the person we talked to was also rude (even my insurance investigator noticed that) and said he will be out to look at the car on monday so thats 6 days total to get someone out and 2 weeks without a car. But the guy was pretty rude and seemed to be against my claim and tried to act smart. My guess is the insurance company will do all it can to not pay for this. Is there anything else I can do? or do I even have a case here if I make a complaint?
Please understand that filing a complaint with the state dept of insurance will get you nowhere because the other driver's insurance company is not your insurance company and owes you nothing unless and until a court of law finds the other driver responsible and says how much. That means that the other driver's insurance company is doing exactly what it's contractually obligated to do: defend it's policyholder against a disputable claim. Since the company paid for repairs 4 months ago it's no surprise that it's responding to your additional claim on it's own time.
The FASTEST way to get your car back is to pay for the repairs yourself, right now, make sure the damage is well documented, and then sue the other driver after you get the car back and try to convince a judge that the suspension damage was caused by the accident.
Anything else you do with either of the insurance companies is going to take some time and there's really no way around it.
If you absolutely have to rent a car, go rent it and try to collect later. Otherwise, if you don't want to take that chance and can manage without a rental, then do without it.
There is never anything convenient about being damaged in an accident and some inconveniences are worse than others. I know. I've been a claimant more times than I'd care to remember.
Report back after the adjuster goes out Monday.
Njzkish:I do not understand how the wheel carrier/arm knuckle as well as control arm could be damaged.
It's actually easy to understand how an impact could affect the rear suspension causing it to fail months later.
Check out this typical diagram. There are numerous vulnerable places where a bent rod or damaged bushing could hang on for months before there is enough abnormal wear on a connection to result in failure.
http://www.geraldstires.com/Services/Front_End/FWD%20Suspension.gif