Well I am finally home after two weeks of biting my nails wanting to get back to work on these with the new sprockets and idlers. They are all of what the first set should have been and more. The tracks fit on them great and run without hang ups. Cost is a bit more, $60.00 for a pair of sprockets and $40.00 for the idlers, but the workmanship is worth it. I still have to adjust the track length, wheel alignment, and install the return rollers. With all of that said, what do you think of them?