Does LTD rear wheel have a LARGER valve stem hole

The mag I have from a 77 LTD ( I think) has about a 1/2 inch hole for the valve stem. The tube has a press fit type stem. The front has a regular size stem and hole. Where do I find a tube like this and what do I call it? Thanks
Wayne

This is what I am looking for! Now to figure what size as I think there are TR15 and some other Tr numbers. Once I get the valve style number I will be good to go. Didnt even know there were different style tube stems.
Wayne

Here's some info on stem types / sizes. Ed

Thanks Ed, it is the TR 15.
Wayne