For those that might be interested here is a tool you can make to lock down your rear axle bearing nuts.
Of course it won’t tell you how much torque you’re putting on the nut, but you can definitely lock it down very tight (100+ Ft lbs) with this 1 1/2 modified open end wrench. ( I believe the spec is 140 ft lbs). If you think you can use this, and don’t want to go through the hassle of making one, let me know and I will ship it to you and then you can ship it back when you’re done.