Has anyone else noticed theres two different starter idler gears? I think around 94 and eailer they have quarter sized holes in it. At some point they changed over to a soild design. I have one of each and im going to use the lighter one with the holes. Has anyone ever cracked or broken one? Im trying to figure out why they would change to a heavier one. I Just ordered an extreme starter clutch also. Has anyone used one of these? They look pretty beefy