What would be the best way to add hydros and plum for a rear thum on my 1998 555e?
Upper right, search for thumb. Joe H
Welcome to HEF, mikey ! Have you considered an Amulet Hoe Clamp ? It is a lot simpler and easy to install. There are prolly some YouTube videos about them.
+1 If you run a search on this forum, you can see my install on a NH 675E