This past week, I drove down to Northridge4x4 in Silverdale Washington for a substantial upgrade. A new ProRock44 Unlimited, complete with RCV axle shafts and Synergy Ball Joints. Gearing all around at 4.88 and ARB Air Lockers front and rear.

What better place to test out the gearing, lockers and ProRock than Hamburger Hill at Stave Lake.

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