If it is not to hard just remove the whole thing and get it on a bench and then try to remove the housing.
Place a towel or two under it to catch any water in the lines when you unhook them.
If you break it then it was time to replace it anyway.
2016 F350 6.7L LB CC Reese 28K 2014 Chaparral Lite 266sab
"Those who would give up essential Liberty, to purchase a little temporary Safety, deserve neither Liberty nor Safety." 2014 19 days camping 2015 17 days camping201620 days camping