Technical 53 Ford Rear End Info

I have a 53 Ford Ranchwagon, and I was cleaning up thre rear end and found a tag with the numbers
46/13 on it. Are these the number of teeth on the ring and pinion? therefore the ratio is 3.53 to one?

 

Yep... The car probably had an automatic in it originally, right?

 

Yeah, it did! Thanks for the confirmation, Much appreciated.

 

Just for you information an early Mustang rear is almost a bolt in.

 

Correct,that's what's under the wagon. HRP