As a second question, with the firm feel sector support kit what does the bearing go on to? Does it go on the shaft below the locknut? is there enough shaft on your gyys cars to do that? With the box I have the locknut is barely flush with the shaft, so I dont think this kit would help, in this case
68Cuda440 is running the small spline 68-72 A-body pitman arm. So he is running a small spline box.
Dangina, are you running a large spline box? From the pictures in the posts I've read the large splines have less threads showing. But I don't know if that's been corrected with the new Borgenson boxes.
Do you have the new or old version?
