The worst part is the constant drips
X100X100
A word of caution, the last 3 I did all had burrs on the valves and had to be polished out. So make sure evrything moves nice and freely when you put them in. Also make sure the little spring that goes inside the end of the TRANSGO valves is installed correctly as a few of these have dropped out during install and caused some havoc for people.
X2...Watch for burs and make sure whatever your working on(like your bench) is super clean, when you split the valve body open do it over a pan or tray, and i steel wooled the two holes you drill out and sprayed it with brake parts cleaner before i put it back together, also when you put it back together be cautious, the tolerances are TIGHT you dont need to force the valve AT ALL!!! Oh, and keep track of those little ball bearings, one per valve, if i remember right? dont scratch anything, and remember to take your time, i took a picture of the valve body before i removed it, being able.to zoom helps, but really it is a pretty cut and dry project, if you plan to install a deep trans pan, now is the time, there is alot of fluid to replace!