This is chilling news as I believe the Motor Wheel wheels on my 1955 Chrysler C-300 have been rechromed. Motor Wheel may have chromed their rims in a manner so as to minimize or eliminate H2 embrittlement, but Joe Blow's Chromeshop's capabilities and care are big questions. I believe there is a process to drive out H2 after plating--possibly heat treating? Also, as a pipeline engineer, I recall that different alloys of steel have differing susceptibility to H2 cracking and that the environment can impact the probability of failure. Clean dry wheels may perform different than those exposed to salt water. It would be valuable input to this dialog to confirm whether the failed wheel was a Kelsey Hayes (doubtful) or Motor Wheel (more likely) and what kind/size tire was mounted. The Motor Wheel brand name is stamped on the inner surface of the wheel (tire has to be off to view) and Motor Wheel wheels have 48 spokes. I believe Kelsey-Hayes brand wheels had 4-8 more spokes. It is a common, but erroneous, assumption that the spoke wheels on Chryslers are Kelsey Hayes. It is also likely that the metallurgy and fabrication processes of the two brands of wheels is similar. C-300'ly, Rich Barber Brentwood, CA 1955 Chrysler C-300 (At least the spokes are stainless steel) -----Original Message----- From: Chrysler300@xxxxxxxxxxxxxxx [mailto:Chrysler300@xxxxxxxxxxxxxxx] On Behalf Of choochooch@xxxxxxx Sent: Saturday, January 27, 2007 8:14 PM To: tomlin@xxxxxxxxx; Chrysler300@xxxxxxxxxxxxxxx Cc: awrdoc@xxxxxxxxx Subject: Re: [Chrysler300] Radials on older rims I too have had a wheel come apart. One of my Kelsey Hayes wire wheels on the C-300 came apart while cornering (fortunately at low speed). The strange thing is that it looked great front and back and when re-chromed a few years ago, no one reported problems. While my experience makes me wonder about these order wheels generally, it didn't appear to be related to tire type. To send a message to this group, send an email to: Chrysler300@xxxxxxxxxxxxxxx For list server instructions, go to http://www.chrysler300club.com/yahoolist/inst.htm For archives go to http://www.forwardlook.net/300-archive/ Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/Chrysler300/ <*> Your email settings: Individual Email | Traditional <*> To change settings online go to: http://groups.yahoo.com/group/Chrysler300/join (Yahoo! ID required) <*> To change settings via email: mailto:Chrysler300-digest@xxxxxxxxxxxxxxx mailto:Chrysler300-fullfeatured@xxxxxxxxxxxxxxx <*> To unsubscribe from this group, send an email to: Chrysler300-unsubscribe@xxxxxxxxxxxxxxx <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/