brake drums

["Jack W. Drews" <vinttr4@geneseo.net>]

My TR4 race car has Datsun 280Z rear brake drums.

This morning I removed and inspected them, and found that one of them had 
three cracks across the iron friction face. Yuk. I have used these drums 
for five years and they never even needed turning. I inspected them last 
winter and did not see cracks at that time, but maybe they were there and I 
didn't notice them.

At any rate, be forewarned that this kind of failure can occur. The thought 
of it happening during a race is not pretty.

uncle jack