Gonna bump so it stays near the top. Pretty interesting, actually. It appears most have failed at under 3000 miles (6 out of 8 at this writing) and most of that group at under 1000 (4 out of the 6). Of course we could be looking at two groups, the good ones that can go more miles and the bad ones that cannot. OTOH, older ones that have lots of miles also should have the bad parts. Perhaps too small a sample or other factors like climate are more important (but climate should be random). Overall about a 13.5 % failure rate.