hummer H3 - rear Suspension - Photo 8991752

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The rear suspension uses specially tuned multileaf spring packs for lift and good ride quality. The bumpstop spacers go on top of the axle, and new sway-bar links are provided. Shocks are sold separately, and they are specific to the H3 mounting system.

131 0607 02 z+hummer h3+front view

131 0607 02 z+hummer h3+front view

Here's the core of Rancho's Realift system: a hunk of steel which indexes into the lower control arm (A) and a hole (B) where the bar indexes into it. We thought that it might flex and move all over the place, but the controlled ride was just right. We even remotely mounted a camera to watch how it moves in action.

The unique two-piece front crossmember allows for easy installation with no cutting. The front bracket installs in the lower A arm holes (A), and the A arm installs in the bracket. The rack-and-pinion steering (B) remains in the stock location so bumpsteer is eliminated. Brackets for the differential (C) drop the pig into the proper location, and longer sway-bar links are also provided (D).

The rear of the two-piece front crossmember (A) drops and mounts the differential and the lower A arms (B). The torsion-bar relocator (C) indexes into the lower A arm and then the torsion bar (D) indexes into the relocator. Extra braces (E) run from brackets on the rear crossmember to the brackets on the front crossmember for extra support and rigidity.

By tying the two-piece front crossmember together with a skidplate, even more structural rigidity is maintained. The differential doesn't need to be removed, cut, or modified, and the supplied drop brackets keep the pinion angle correct for little drivetrain vibration.

Mounting the new raised knuckle (A) can be a pain by yourself, but is relatively easy with two people. The new knuckles have a raised upper mount to the ball joint, and the steering boss is raised as well. This allows the steering links (B) to stay in the stock location.

The rear suspension uses specially tuned multileaf spring packs for lift and good ride quality. The bumpstop spacers go on top of the axle, and new sway-bar links are provided. Shocks are sold separately, and they are specific to the H3 mounting system.