Originally Posted by clr
I have been RVing for many years now but I have a burning 5th wheel hitch question. I have always used a slick disk on the 5th wheel hitch instead of grease. Well its time to replace the disk now. I find that there are three sizes of disk for 5th wheel camper use 8 inch, 10 inch and 12 inch. So how do you know what size disk is correct to use on your combination of 5th wheel pin box and hitch model? No where can I find the answer on the net. It appears to me that it is determined by the model of the hitch but like I said no real answer.
You would need to measure your kin pin. Hitchweb sells 5th wheel slip disks
They come in various sizes, if you have any questions I am sure they can help.