Question: when using a lube plate, doesn't it prevent the pin from come down further in the hitch? Does it affect how well the pin can be wrapped by the hitch mechanism?
The correct answer is maybe. Depends on several factors to include pin length, lube plate thickness, and hitch design. I have had trouble using a lube plate with a Binkley hitch head. It would not latch with a lube plate, yet the same fiver with a Reese hitch and a pull rite hitch latched fine.
2015 F-350 DRW 6.7 Scorpion Diesel Reese Ford Hitch 2014 Grand Design Momentum 355TH