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Knuckle

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There are two major styles of IFS suspension kits on the market for '88-'98 Chevys: those that lower just the bottom A-arm and use a new taller knuckle, and those that lower both the upper and lower A-arms. The Tuff Country kit is the latter version and requires a torch or plasma cutter to remove the old bumpstops since they occupy the space on the frame where the upper A-arms will now attach (arrow).

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