Kellyex1450
Well-known member
I ended up getting a front steer Astrovan box. I was under the impression that there were only a few sector shaft spline variants, but there are more than I thought, from what I can tell the Astrovan box I have is a 1 1/8" and the pitman arms Rouse had were either from a manual box (to small) or for the bigger 1 1/4" sector shaft. I cut up the original Sonoma pitman arm pulling the OE steering and it had an integrated balljoint which I didn't want. I now know more about sector shafts sizes than ever before, my little knowledge is there are at least 3 common sector shaft sizes with 2 different master spines variants. I wish I could find a legend on sector shafts sizes, IE what OEMs used different sizes over various models/years. my background is more with racecar stuff which I find a lot easier to understand as it transcends years and manufactures. I got my fingers crossed that the wagoneer pitman arm that I ordered will arrive in a few days and will work as the internet said it would.I have an astrovan gear box if that helps, Kelly. Not sure where you are trying to get the pitman arm ti end up