Washer Under Ball Joint Castle Nut

[jtwoods4]

Hey Guys,

I am in the process of building my pro touring race car and I ran into a small issue with the lower control arm ball joint and castle nut. I have the Speed Tech AFX aluminum spindles and I installed the lower ball joint castle nut and torqued to 80 lbs. Well I realized that 80 lbs is the torque amount for a cast iron spindle. So I removed the castle nut and the re-torqued to the correct 40 lbs. I installed a grade 8 flat washer under the castle nut to get the cotter pin hole to line up correctly in the castle nut. Do you guys see any problem with this? Here is a picture.