Spindle Nut Torque - 9 in Drum Brakes????

Tapered roller bearings require preload when initially set up. They don't need any "play". I've never torqued one in my life, but if I had to guess, I probably go 10-12 LB FT. If the cotter pin hole doesn't line up where I feel good tightening it, I tighten to the next hole and put the pin in. Never back it off to line the cotter pin up.