Thanks Mac I was hoping you'd see the post.
2. So we're talking .010 difference.. geezzzz.. Umm well guess thats why I couldn't tell just a different "shape of the teeth"
Now saying that they're not interchangeable is the problem as the gear is in and Ive been driving it with no problems - noises etc.. I just dont know if I'm panicking over nothing or could it tear the box apart without me knowing...?