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GM 1500 99-06 6in Suspension System
GM 1500 99-06 6in Suspension System


Zone Features:

1. CNC Machined ductile iron knuckles.
2. Diffential skid plate included to protect the front differential and lock the crossemembers together.
3. Compression struts included to support the main crossemembers for serious off roading.
4. There is a 1/4" thick steel used to make indestructible crossemembers.
5. 3-point differential mounting system correctly positions the differential so the factory driveshaft can be used.

1. Torsion bar unloading tool required.
2. Requires frame bracket modification and differential mount modification.
3. Will not fit HD models, see kit # C4.
4. Compression struts won't work with '99 models with an "S" shaped transmission crossmember.
5. If equipped with 17" stock wheels, then 17" or larger aftermarket wheels must be used.
6. Minor Welding required.
7. Will not fit old body style 1999 models.
8. It may be required to order the rear add-a-leaf kit C6159 for a slightly above level to tail high appearance.
9. Optional Add-a-leaf kit is recommended on Crew Cab models to achieve more level stance.


Skill level: 4 of 5.

Estimated install time: 8 hour.

Max tire Size: 35x12.50

Wheel Size:
16x8 Inch Wheels with 4.5 Inch Backspacing.
Wheel Size:
17x9 Inch Wheels with 5 Inch Backspacing.
Wheel Size:
20x8 Inch Wheels with 5.75 Inch Backspacing.

Ready for all your friends to be jealous? The Zone Offroad Products 6" Suspension Lift Kit for 1999-2006 Chevrolet 1500 Silverado & GMC 1500 Sierra pickups is the ultimate in style and performance. Whether you are just driving to work or playing on the trail, this system was designed to perform. The main crossmembers were designed to match the factory geometry with the new Zone CNC machined steering knuckles creating a true factory quality driving experience. Match this geometry with the heavy duty differential skid plate that locks the main crossemembers together and the compression struts that tie back to the frame and you have a system ready for some serious abuse!

Add Part# Description QTY Retail Price Sale Price
C3Chevy 6" Suspension System CHEVROLET SILVERADO 1500 1299.95 1299.95
C3NChevy 6" Suspension System with Nitro Shocks CHEVROLET SILVERADO 1500 1327.23 1327.23
C3GMC 6" Suspension System GMC SIERRA 1500 1299.95 1299.95
C3NGMC 6" Suspension System with Nitro Shocks GMC SIERRA 1500 1327.23 1327.23

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