Have a 2016 Cornerstone and need manufacturer and part number to drop down to a 2in tow bar. The Cornerstone has a larger square hole to tow up to 20,000 lbs and I need to find the adapter to down size to 2 inches. Thanks for your help.
Take care
Bill
Found one on Amazon. Reese Super Titan Receiver Adapter. 3 inch to 2 inch adapter sleeve.