The New Rock Box from Advance Adapters
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We followed an install on a ’Cruiser at the Advance Adapters facility, and a completed one for testing and torturing. While there is clearance for most units, a body lift helps keep trimming of the rear floorpan to a minimum. The stock or SM420 tranny first gets an adapter plate bolted to the rear, which is about an inch thick. View Related Article
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