Is there an alternative to the factory air valve extensions on the rear wheels? I have never in my life had so much trouble with extensions. I'm ready to rip off the wheel covers and have something welded to the wheels! They spin around, will not stay tight in the wheel. This has been since new and CW claimed they took care of it. Now I'm crawling around on the concrete trying to see and get air in the tires before leaving tomorrow on a long trip. I'm pretty sure of 3 but that 4th inside wheel has somewhere between 30 and 80 lbs now. I wanna break something! Should have left well enough alone at 78lbs but noooooo, I had to have 80. Did I mention working in full sun and its 90 degrees?