If you have ever changed the fluid in a 4matic transfer case you will understand why Kent is so excited about his new custom pressure bottle.
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This tank works amazing! Put in the heavy rear end or trans fluid. Pump up the pressure. Stick the non-fall-out end in to fill hole... and just push on the valve in the handle of the filling wand.
A better performing and more comfortable 14mm hex wrench to use when changing the fluid in your rear end. Watch the video to see why.