Take and get a Air fill extension for the valve core. You get this extension at the parts store or a regular tire store, the extension I am talking about is the ones that are used on dual tires on trucks.
1 Remove the tube from the tire and removes it valve core
2 Break the bead loose from the back side of the tire, this allows the tire to collapse slightly when you are trying to put the tire on
3 Reinstall the tube
4 Screw the extension on the tubes valve stem and then push the stem back as far it will go.
5 Get some dish washing soap from your wife.
6 Mix the soap up in a 50 to 50 mix ratio with water, about a pint will be over kill
7 Put the soap mix on the bead of the tire liberally on both sides.
6 Use a pair of vise grips near the stem of the tire and clamp them on the rim after you start the rim.
7 Carefully walk the tire around the rim and be sure you pushing down on the tire to clear the rim flange and that the tire is being pushed down into the wide area of the inner rim.
8 After you get the tire back on the rim rotate the tire around until when you pull up on the valve extension it pulls the valve stem of the tube straight out.
9 Fill the tube with air with the extension in place.
10 Deflate the tube by removing the valve core out of the extension, Then holding the valve stem unscrew the extension and reinstall the valve core into the tubed tire
11 Air the tire back up to its proper pressure. Use caution and do not exceed the recommended max. air press of the tire.
They can be really nasty for sure to remount. Once I poked a hole in my new tube trying to get the tire back on. 
