I bought an 04 base outback with the 2.5. It has 208k miles, in 2014 with 137k the owner had the timing belt replaced. After that replacement and now 70k later should i replace the timing belt again? Or am i good to go still, car was serviced often and seems to be in good shape. I inspected the belt, no cracks, arrows line up well, slight shinny texture but teeth look good.