Thanks Brian -- Never hurts to bring a thread like this up. The RH-5's are still out there. I saw an active farm truck not too long ago running on RH-5s. Which was scary enough. But then I got to thinking ... those things have been outlawed for awhile now ... just about any decent tire shop is going to refuse to work on them ... so it must have been a very long time since the tires were mounted on them ... fossilized rubber on RH-5s that were on an over-loaded grain truck that probably has spent most of it's life parked in a barn on a dirt floor ...
Nobody likes being pulled over for a roadside inspection by the nice DOT man in the blacked out Suburban ... but this is why they do it.