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Irs Fox Body Mustang Hardtail Upgrade

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In addition to the list of modifications Kenny Brown normally makes when charged with modifying an IRS subframe, Brian opted for what's known as the hardtail upgrade. In stock form, the forward and rear mount points have a nearly identical-appearing rubber isolated mounting system, the rear of which fits into brackets that are in turn bolted to the framerails. The hardtail changes these rearmost mounting points, eliminating the rubber bushed ends and frame brackets in favor of an arrangement that bolts directly to the frame.
Fox Mustang Independent Rear Suspension Install

In addition to the list of modifications Kenny Brown normally makes when charged with modifying an IRS subframe, Brian opted for what's known as the hardtail upgrade. In stock form, the forward and rear mount points have a nearly identical-appearing rubber isolated mounting system, the rear of which fits into brackets that are in turn bolted to the framerails. The hardtail changes these rearmost mounting points, eliminating the rubber bushed ends and frame brackets in favor of an arrangement that bolts directly to the frame.  View Related Article

 

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