Have you tried contacting the manufacture - Camco Eaz-Lift? The part number is #48742 hook up tool. If they do not sell direct they can give you a dealer that you could use. The phone # is in the instruction book that came with the hitch.
2005 Cruiser 29CK
2008 GMC 2500hd 4x4
Crew cab Long bed 6.0 gas
4.10 gear ratio
Just wanted to close this one out. I called camco and was able to order the hook up tool. As expected, the shipping cost as much as the replaced part! I think the Mrs is going to paint bright pink stripes on it so it doesn’t get misplaced again.
2016 Zinger Rezerve 28bh pulled by a 2016 Chevy Silverado 3500HD.