200 series 08 LC. After an accident w/ side curtain air bag deployment the driver and two outer rear seat belts are locked in place (strangely the passenger and middle rear is not). I know there are seatbelt reset services out there, but how hard is it to do yourself? I'm great with mechanical stuff, but watching some videos online, these look pretty complex with charged chambers, ball bearings, coiled springs, locking gears, etc. And since it's a safety device, I want to make sure it's done correctly. If it's gunna be a huge PITA, I might just send em in for rebuild, but if I can save the $$$, that would be preferable. Thanks!