I went a slightly different route. I ended up getting a backup camera for the camper off Amazon. Close to $120 and it not only helps with backing in but the monitor stays on when driving so it acts as a rear view mirror.
I have a 21 Gladiator that has a bad rear wheel speed sensor. Unfortunately they are on back order until the 1st of October. Does anyone know if a sensor from a JL would work? Different part numbers as far as Mopar but thinking they wouldn't make Different sensors for all the different models.