Does anyone know where I could buy a front receiver hitch that would fit on my 03 3500. I want to put a T rack on it so I can carry a kayak or canoe. Thanks

 

Here's a link from 2 days ago in this forum. Try an online search for a place to purchase one. You should get a bunch of hits.
https://www.dieseltruckresource.com/...threadid=67433

If all else fails, drive on down to a local trailer hitch store, they'd be delighted to sell you one.