Quote: Yes we did cover that, the arm loosening is a huge issue. It the arm or the shaft causing it ?
There is a relationship between the nut loosening, threads exposed passed nut, and height of the pitman end. I think the postion and/or profile taper of the splines is not right.
That's a different issue than the rotatioinal position of the splines that is the primary concern of the orignal poster; Sxnr though.
