I have a DAMAGED G50/52 gearbox for sale. Its has a damaged case, but several internal parts a good.
super diff , Selectors, syncro hubs, 5th and revs gears and rear case are all great.
other gears all have no chips but have wear marks.
i am not repairing due to going to upgrade.
If you have any question please email or post on here, Also you can contact Ron at Racetrans who can give you more details as he has inspected the damage.