buckeyefarmer
Epic Contributor
I rented a stump grinder (with trailer) once and the checkout guy wanted to verify my lights (as they should). The left signal didn't work but he said I could take the grinder and trailer anyway, but I "should check my truck's wiring". That told me his trailer lights were bad. Since I knew my wiring was good and I knew I could make the (short) round trip with right hand turns I took the trailer (they only had 1). I since bought a Reese adapter from Round to Flat that has LED lights on it so I can prove my truck wiring if this happens again.
Reese Towpower | 78116 | Wiring Adapter, 7-Way Round to 4-Way Flat, w/ LED Tester
Fit for your lifestyle whether you need to transport livestock, supplies to a job-site, or haul your RV to the campsite, REESE manufactures many classes of receiver hitches to meet your every towing need.www.reesetowpower.com
At uhaul they checked my truck connection to verify it worked.