This easy to install 4" lift kit for the Avalanche, Suburban, Tahoe and Yukon by Tuff Country uses a combination of new extended steering knuckles and a one-piece sub-frame. The extended knuckles eliminate the need to drop the upper control arms. The amount of brackets and pieces required has been reduced by half. A one-piece sub-frame will aldo help to eliminate annoying squeaks and rattles. This is a simple bolt-on installation. Factory shocks do not need to be replaced as the kit includes shock relocating brackets.
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