Any shade tree mechanic with a few brain cells to rub together knows how to weld a few pieces of key stock onto a pipe nipple and make his own axle nut spanner wrench. Drill a hole in the pipe for a piece of 1/2" round stock for a handle. The guys with the PHd in "shade tree engineering" weld a junk 1/2" drive socket into the end of the pipe and use a torque wrench for getting an accurate bearing preload.
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!