Looking too replace all my bearings in my diff when I get my tomei 2 way installed, but when I'm searching new bears on rockauto, I get the option for 7.5in ring gears, and 7in ring gears.

I'm pretty sure my 97 M ring gear is 7in. If its 7in, why offer a 7.5in?

If someone could verify before I make my purchase would be great.

This is my current shopping list...

 

Those side seals are ridiculously overpriced.
https://www.prioritymazdaparts.com/o...eal-ma0227238a 7.21 each from mazda. Pinion seal 8.20 from same place. Beyond that I have nothing, but was under the impression the 2 diff sizes were 6" for na6 and 7 for everything else.

 

That's what I figured as well, but for some reason rockauto offers a 7.5" ring gear