On your transmission connector, You can buy crimp on bullet connectors that will work just fine. Or if you want to keep it original get a soldering iron and put the wire back in the original. All you have to do is heat it up, old solder comes out, slide in wire and put in new solder. Me, I went the easy way with the crimp on.
On your 02 sensor wire, could you just use some super glue or epoxy like another suggested?
