Need a spindle nut socket for axle in 2500HD Chevy

The info I had was tighten to 50 lbs then back off ~1/4 turn until the key lines up. I read different versions but all were around 50.

I measured the distance to torque it down before I removed the nut. It was less than 1/2 turn to 50 lbs. With 90K miles on it that made since to me.

I'm not sure if the higher torque may be a GM thing or to help seat the 2 part seals in addition to the bearings. I didn't remove the bearings. It still turned freely at 50 lbs. but felt right when I backed it off 1/4 turn.