hi the trouble with flipping the front axle on g wagon axle or any other axle is that the crown gears are beveled so as drive is engaged with 2 beveled gears meshed together they pull together creating a tight strong drive as soon as you flip an axle the bevel gears now push apart giving a sloppy engagement of gears creating diff wear. so get the best toyota or nissan or spent a fortune on arb and half shafts hope this has been some help