Hi guys!
I need to replace the rear spider gear on my H2 2008 model, but on the market there are so many, I ave bought one but it doesn't fit in my car, how can I know with one is the correct one? the original from gm is about 500 USD, so I was looking for some aftermarket.
I have just replace the gear and pinion from G2, front and rear.

any help will be appreciated!

ciao!