8 3/4 suregrip spider gears question

[Travis_216]

Hello everybody

I'm currently rebuilding a 8 3/4 for my 73 Charger, I have a 489 case but I had a suregrip carrier gave to me. It's a clutch type powr-lok from what I can tell. Now my problem is one the the spider gear shafts is split and Dr. Diff is out of the powr-lok internal kits, although he may have a shaft to sell me I have to call him the week. But if he doesn't have a shaft am I screwed? I searched around but couldn't find them anywhere else. Just wondering if anybody knows where to get spider gears or a internal kit for this suregrip?

Any help will greatly be appreciated 

Travis