came across this link from new zealand vehicle inspection assoc. describing in detail the problems with aftermarket steering cloumns, it is kind of long and dry reading, but there is a lot of great info, and photos of problems area's, there inspection guide could also work on used junk yard columns also http://lvvta.org.nz/documents/infosheets/LVVTA_Info_01-2013_Unsafe_Aftermarket_Steering_Columns.pdf the ems guy