Ok i've been reading a lot of post here in the last few months with people having problems with timing chains. More than I would like to hear personally. My 2000 LS V8 Sport has about 115,000 miles on it. I called the stealership to get a quote on labor and want 1480.00 I believe 16 hours I think he said. While this seems awfully steep have many people gone and had the work done just to be safe?? Would like to see some opinions on whether or not I should do this or not.