I agree the trans is probably bullet proof, I was thinking more if you had a clutch issue. You could cut that plate down both sides & make it a bolt in.
What have you had fail in the 10 bolt?
Crack test used gears before you run them & there's a curdle available for the 7.5 10 bolt that prevents housing flex & supports the carrier caps, worth the money on these little diff's.
Sid.