'69 ElCamino trailer hitch
 

Does anyone know of a source for a trailer hitch for a '69 El Camino? It doesn't have to be a receiver type, but should be Class-2. I've already googled all the main hitch makers and back to '69, they only list pick-up truck hitches.
thanks
Verne

Also, can someone suggest a person in NJ who can make a 2.73 open rear a posi? I'm not looking for numbers, detailed, resto, show or fancy. Just a posi conversion. (it's the orignal 12-bolt)