Step 1: Things to Get:
2) Valve stem install tool (also available at Walmart or auto parts store for a buck or two); does two things:
a) valve remover.
b) valve stem puller.
3) Long handle pliars (channel locks work great).
4) soapy water in a spray bottle. 409 or dish soap + water, or etc... just needs to be very soapy/slippery.
5) A car jack.
6) A few blocks of wood like 4x4s. about 2 ft long.
7) An air compressor.
8) A tire pressure gage.
Step 2: Prepare the Tire.
2) Deflate the tire and remove the valve from the valve stem using the valve stem tool.
Step 3: Push the Rubber Tire Down to Expose the Valve Inside the Rim.
3) Set up the tire as shown under the bumper of a heavy vehicle.
A) Use blocks opposite the jack to keep the tire from flipping up while using the jack to push down.
B) Use a jack to force the rubber tire down off the rim near the valve.
TIP: You may need to do this to the left and right of the stem first to loosen up the bead lock before it will break loose.
Step 4: Remove the Bad Valve Stem.
5) Cut the front of the valve stem off if needed to get the back to come loose.
CAUTION: Never place any part of your body in between the rubber and rim. amputation could occur if the jack popped loose. Use pliars not hands!!
Step 5: Install the New Valve Stem.
7) Remove the valve stem cap.
8) Remove the valve.
9) Spray the entire stem with soapy water to make it slippery for easy install.
10) Grasp the valve stem base with long pliars.
11) Hold the valve stem pull tool in your other hand.
12) Use the pliars to reach the valve stem into the rim valve hole.
13) Screw the valve stem pull tool onto the stem from the outside.
14) Gently pull the valve stem tool with increasing force until the stem pops into place.
Step 6: Re-install the Tire on the Rim.
16) Replace the valve into the valve stem.
17) Spray soap all around the tire again to make it slippery around the rim.
18) Start inflating the tire. Keep hands back as much as possible because the tire will pop into place on the rim with ALOT of force.
Step 7: Re-inflate the Tire to Recomended Pressure.
Step 8: Test for Leaks.
21) Replace the valve stem cap.
Step 9: The Tire Is Now Ready for Use!