hi guys and gals, I just replaced my oil pressure valve with the one from Terrain Tamer and I have found in my toolbox the tool for the job. Unfortunately I found it after removing the power steering pump. I am pretty sure that with this wrench one can remove the nut that holds the spring/valve in position. But putting the nut back on while putting pressure on the nut to get the threads started may be a challenge with the power steering pump still in position. Its a 7/8” on the one end. I think it is also a 22mm.