Ours is a little more than 5/8. The play is in the hinge where the bolt is. The hole is wearing and getting oblong. When we are sitting I use a laptop power converter to keep it level.
2015 Ram 3500 SLT Mega Cab DRW, SS Nerf Bars, Andersen Ultimate Hitch, ATTA Freedom Fill System
Living Full Time in a 2015 39MB Tan & Burgundy Urban Clay/Caramel, Wineguard Dish, Res Fridge & Induction Cook Top, myRV Linc Remote, MorRyde 8K IS, Titan Disk Brakes, 17.5 Sailun S637's