I'm putting a new spindle on the car, and the two lower bolts, the bigger ones, that tie the brake backing plate to the spindle, and then the lower ball joint, call for 100 ft/lbs. unfortunately, the castle on the nut exactly covers the cotter key hole at 100. if I back it off to the previous slot, it sits at 80 ft/lbs. if I take it to the next one, it's easily 130 ft/lbs, maybe a little more.

which way should I go?