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Zone Features:

1. One piece 1/4" steel crossmembers
2. CNC machined ductile iron steering knuckles
3. Differential skid plate for offroad protection
4. 3" Rear block kit for easy installation
5. No Differential Trimming Required
6. The front differential parts will not be used on 2wd models.

*Kit comes standard with upgraded Nitro (black) shocks*
2015-16 Models Only: 20" wheels can not be reinstalled due to GM changing the wheel thickness. The ID of the 20" wheels are smaller on 15-16 models.
Torsion bar unloading/loading tool required
Frame bracket modifications required for installation
With a 20" Wheel, 5"-6" backspacing is recommended
Rear kit designed for single rear wheel axles.
Stock 17" or 18" Wheels cannot be re-installed
Will fit 2wd models. The front differential related parts will not be used.
Factory 20x8.5 wheels with 6" backspacing or less will fit with a max tire size of 35 x 12.50
Optional steering stabilizers (3103/7103) only fit vehicles that came equipped with a steering stabilizer from the factory.
Vehicles equipped with a two piece drive shaft and a carrier bearing require bearing drop kit (C5612).


Skill level: 4 of 5.

Estimated install time: 6-8 hour.

Max Tire Size: 35x12.50

Wheel Size: 17x9 or 18x9
Backspacing: 4.5 inch to 4.625 inch

Wheel Size: 20x9
Backspacing: 5 inch to 6 inch

This Fits the Following Applications:

11-16 Chevy 2500HD Pickup 2WD/4WD
11-16 Chevy 3500HD Pickup 2WD/4WD
11-16 GMC 2500HD Pickup 2WD/4WD
11-16 GMC 3500HD Pickup 2WD/4WD

The heart of the Zone Offroad 5" 2011-16 HD lift kit is a pair of one piece " steel crossmembers combined with the CNC machined steering knuckles to create OE geometry for a quality ride. Also included is a laser cut differential skid plate, differential support brackets, torsion bar brackets, sway bar links, offset rear 3" lift blocks, stainless steel brake lines and custom valved shocks. This system is designed to level the truck and has zero change to the vehicle's track width allowing for clearance of up to 35x12.50 tires. No differential trimming required!

Add Part# Description QTY Retail Price Sale Price
C12NChevy3500 5" Suspension System WITHOUT Rear Top Overload Springs with Nitro Shocks CHEVROLET SILVERADO 3500 1399.95 1399.95
C13NChevy3500 5" Suspension System WITH Rear Top Overload Springs with Nitro Shocks CHEVROLET SILVERADO 3500 1399.95 1399.95

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