Bike on ctr stand, length of wood and a wedge (for leverage) under the back wheel to take the weight, remove top & bottom bolts, adjust wheel Hight for new dogs and until greased up bolts slide in.
I'm a 29" leg, so I started by removing the seat rubbers, that gave me 1/2" lower, I then swopped the dog legs for a 1" lower set.
that 1" dropped the bike really low and affected the side stand so I had to change again to 1/2" lower, this worked for me.
took me around 90mins