Just thought I'd drop you all a little trick I learned that has helped me in changing tires. After buying several different bead breakers and trying everything I could to get those impossible beads to come loose I had a thought, tires pop off the bead sometimes while under hard riding conditions and full of air, so I put a little air back in the tire and tried to get the bead broke, I was amazed that after destroying several tires and working for ever to get the bead broke that something as simple as a little air worked like a dream!!!! Hope this helps some of you as it has helped me!

 

Another way is to use a Hi/Low jack,place the bottom of the jack base on the side of the tire,up against the rim,be sure to let the air out and take out the valve core, then just jack up the truck on the rear bumper. The weight of your truck will break the bead, you may have to rotate the tire to get a better bite now & then but once you get the hang of it, (flip the tire/rim over & do the other side too), you can really knock out all 4 tires/wheels real quick.
To reinstall the new tires, put the tires on the rims, install the air-cores, wrap a racket-type tie-down around the tire & crank it down, so the tire is real snug/tight against the rim. Run down to the gas station & carefully begin to air up the tire, while watching the tire, once you see the tire take hold of the rim,remove the tie-down, continue to air up till both beads pop, you are now done.
Just another way to do this by yourself, instead of paying some bucks out-of-your pocket to a dealer.

 

I successfully broke dunlop beads with my "Nyroc Built" bead breaker a couple of days ago. Someone told me to just keep pushing and rotating the tire around and the bead would eventually go and it did. POP!

I tried the air in the tire, but it only worked on one side.