Here's a pic that you can identify with:
The vacuum port labeled "C" will go to a ported valve on your carb whether it be Weber, MC2100, or stock Rochester. I'd look to get a replacement Charcoal Canister if that vacuum nipple is broken.
There's a guy on another Jeep forum who is selling parts and I bought a T5 from him and he had a Charcoal Canister laying around too. It would work for you. He's a little hard to get a hold of sometimes but will sell for cheap.
NJ - New Jersey Cj parts - JeepsUnlimited.com Forums