mellow wrote:
I don't recommend this, but once I was in a pinch and got a bunch of 18" extenders from Harbor Freight, but that was for a basket that maybe had 80lbs of stuff in it. It drops height quick when you stack them.
https://www.harborfreight.com/class-iii-18-in-x-2-in-standard-receiver-tube-69815.html
Did you drill out holes in the truck joining end? How did they stay in your receiver on the truck?
I’ve found these in 48” made by Reese and others. But the far end, like in the Harbor Freight ones, doesn’t have a hole for the pin.