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[ITowBoats]

next time there's an icy parking lot, go do a 4wd donut and crank the wheel hard over, and feel the u-joints bind and then release,

and it's the u joints binding in 4wd too, cause with an open diff in the front and back there is nothing preventing the wheel speed from evening out.

the old axle's use to have these bolts and jam nuts to prevent over turning the knuckles, but now the stop is cast and non adjustable. so to allow for a tighter turning radius in 4wd, they allow the knuckles to turn past the working angle for the u-joint.

somebody jump in here, the working angle for a single u-joint is somewhere around 25 degrees, i think