Very easy - the fresh water connection and two bolts on the flange. Hardest part of the installation is getting the new toilet positioned properly over the hole.
Before you buy a new toilet be sure you have the necessary clearance for it to fit. Was going to put a residential height in the 5er, but there isn't enough clearance for it to fit.
Rob & Kelly, Bella & Brady (Miniature Schnauzers)
2016 Eagle 323LKTS
2016 Ram 2500 6.7L CTD
2015 White Hawk 29REKS Summit Edition (Traded)