2002 GMC Sierra 2500 HD - Suspension Wheels and Tires

This RCD 6-inch vertical lift will be installed by the crew at Top Line Performance in Huntington Beach, California.
This RCD 6-inch vertical lift will be installed by the crew at Top Line Performance in Hun
With the wheels and tires removed, we could clearly view the factory front torsion-bar suspension with standard disc brakes. Following the disassembly of the 3/4-ton brake caliper and rotor, Ryan removed the hub assembly.
With the wheels and tires removed, we could clearly view the factory front torsion-bar sus
After releasing the twisting tension of the torsion bars, Ryan removed the torsion bars from the dog-ears lever.
After releasing the twisting tension of the torsion bars, Ryan removed the torsion bars fr

Before installing any suspension components, it's a good idea to read the well-written RCD installation instructions.
Before installing any suspension components, it's a good idea to read the well-written RCD
The front and rear crossmember drop-down brackets were aligned into position, then the bolts were inserted and secured.
The front and rear crossmember drop-down brackets were aligned into position, then the bol
The RCD torsion-bar crossmember drop-down brackets were installed to each framerail.

The newly located torsion-bar crossmember was secured to the RCD drop-down brackets.
Jim Kwolek and Ryan re-aligned and installed the factory lower control arms and torsion bars.
Jim Kwolek and Ryan re-aligned and installed the factory lower control arms and torsion ba
Ryan readjusts the torsion bars by carefully screwing in the adjusting bolt, which applies tension to the torsion bar.
Ryan readjusts the torsion bars by carefully screwing in the adjusting bolt, which applies

The torsion-bar suspension was reassembled with lowered crossmember and lower control arms in place.
The torsion-bar suspension was reassembled with lowered crossmember and lower control arms
A pair of lateral compression struts and mounting brackets were installed for increased strength and rigidity to the front and rear drop-down brackets.
A pair of lateral compression struts and mounting brackets were installed for increased st
The factory front hub and bearing assembly (bottom) was replaced by a longer 6-inch front hub and bearing assemblies.
The factory front hub and bearing assembly (bottom) was replaced by a longer 6-inch front

Ryan used a pneumatic gun to secure the front hub and bearing assembly to the new RCD front hub and bearing assembly.
Ryan used a pneumatic gun to secure the front hub and bearing assembly to the new RCD fron
The front hub assembly was reassembled and secured using a pneumatic gun. The factory 3/4-ton brake calipers were reinstalled onto their mounting brackets, covering a broad sweep of the rotors.
The front hub assembly was reassembled and secured using a pneumatic gun. The factory 3/4-
Longer polished aluminum sway-bar endlinks, with urethane bushings and hardware, were assembled.
Longer polished aluminum sway-bar endlinks, with urethane bushings and hardware, were asse

A pair of Bilstein gas-filled shocks were mounted up front to help dampen the front-suspension oscillation in rough terrain.
A pair of Bilstein gas-filled shocks were mounted up front to help dampen the front-suspen
A look at the final assembly of the RCD enhanced front suspension.
Moving to the rear, the factory U-bolts were removed, which freed the rear leaf-spring pack from the rear-end axle housings.
Moving to the rear, the factory U-bolts were removed, which freed the rear leaf-spring pac

A 4-inch cast-iron block was inserted between the rear leaf-spring pack and the rear-axle housing, this was to obtain the proper level lift. Then, a pair of Bilstein gas-filled shocks were installed to take care of any aggravating rough terrain or smooth highway miles.
A 4-inch cast-iron block was inserted between the rear leaf-spring pack and the rear-axle
Due to the double driveshaft, a center-bearing drop support bracket was bolted onto the existing support bearing.
Due to the double driveshaft, a center-bearing drop support bracket was bolted onto the ex
A little bit of difference between the Cooper Discoverer STT (35/12.50R18) compared to the factory Goodyear Wrangler AT/D2 (LT265/75R16) tire.
A little bit of difference between the Cooper Discoverer STT (35/12.50R18) compared to the

The aggressive tread design of the Cooper Discoverer STT with the bold looking custom Ultra Goliath chrome wheel makes a great on- and off-road package. Before hitting the open road or rough terrain, Ryan rolled the Sierra up onto the alignment rack to get everything squared and true.
The aggressive tread design of the Cooper Discoverer STT with the bold looking custom Ultr

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2002 GMC Sierra 2500HD - Fantastic Four