I'm Installing the New airbags in the rear but I'm having a hard time getting the solenoid to twist into place, it seams the "o" ring provided is to big and it wont fit into place, I tried several other ones but then the bag leaks from the solenoid. Does any one have a trick up their sleeve, or anything else I can use besides the "o" ring. Its not the two o rings on top of the solenoid that are a problem its the one that sits at the botton were it twists into place.