Question to all Vision 19.5 wheel users

HMS Beagle wrote:
In reading the thread and looking at the pictures, I kind of figured that retaining washer was what the spot faces were for. The problem with them is that the aluminum surrounding the hole will be loaded in bending stress because the aluminum directly under the nut has been machined away. Normally it would be loaded in compression by the nut. Not a good idea generally speaking, with very careful engineering, attention to fatigue limits, and good controls on exactly how they get mounted and torqued maybe you can get away with it - but here in the real world, not a good idea.

Here, in the real world, GM put literally millions... not an exaggeration, but actually millions... of RPO PYO aluminum truck rims with the back side recess for the retaining washer on new trucks and suvs, sold around the real world, including places without good controls or torque wrenches, for 8 continuous years. These wheels were forged throughout the world, in Alcoa's foundries in the US as well as Superior' foundries in Hungary.

I only speak about these particular aluminum wheels because I happen to own 3 sets of them, and only want to speak from personal experience. 3x4x8=96 hole opportunities to personally observe, and I've never had any of them crack at the nut seat, despite the relief machined into them. In 17 years of reading about the vehicles that originally came with these wheels, I've never read of anyone else's cracking.

I'm just pointing this out because it seems doubtful that an OEM manufacturer as large as General Motors could get away with producing millions of copies of a truck wheel for almost a decade in markets around the world that had to be so "carefully mounted". That's a lot of real world numbers to condemn out of hand the concept of cutting a relief for the retaining washer so that the wheel will mount flat and perpendicular against the rotor flange.