Hey. My wipers work but I am a firm believer in the use of rain x . Great stuff. I have a 2008 truck with original wipers, I think it all because of rain x and not having to use the wipers in the rain.
I have a pace Edwards. If I were to do it again I would go with the retrax. Having said that I put a piece of yellow electrical tap on the front of the hitch and one on the front of the pin box. Line them up and your dead on. Good luck.