Re: TPMS
Reply #28 –
Problem with long valve extensions on the inside dual wheel:
The issue here is broken extensions caused by flexing of the extension as the wheel rotates. This is easily resolved by sliding a short rubber tube over the extension where the extension goes through the rubber donut in the outside rim to stabilize the extension. Mine are very tight and not easy to install, however, 9 years, 40,000 miles with no failures.
Installing a short, outward facing valve stem on the outside dual wheel:
No need to wait until you replace the tire because you can park with the valve stem at the top, and lift tires with a bottle jack. Then, release tire pressure, push the tire inward, lift the tire with a bar at the top between the tire bead and the rim. The valve stem is easily accessible for replacement. Reinflating the tire is not difficult (like with a car tire where beads will not seal) but does require a large volume of dry air.