I'm getting ready to take out the rear window to fix some rust that's forming, hope it won't ge to bad. My plan to to take out the rear window by cuuting the seal, fix the rust and have a windshield place put the rear glass back in with a new OEM seal (I've never put the glass back in a don't want to risk breaking it). The FSM calls for sealant to be used, what sort of sealant should I get and can I get it locally at say NAPA? On the other hand should I just let the windshield place provide this and just make sure they do use the sealant when they put it in?