Tuff Country # 97036 block kit include lift blocks and ubolts designed to raise the rear of your GMC Truck. Installation is done by inserting the cast lift blocks between the factory rear leaf springs and axle. Extended zinc plated rear ubolts designed specifically for the GMC Truck are use to replace the factory ubolts.
Features and Benefits
- Lifts the rear of your vehicle 4"
- Maintains a factory ride
- Custom made for the GMC Truck
- Lift blocks are constructed of heavy duty cast iron
- Blocks are tapered to eliminate or reduce driveline vibration
- Zinc plated corrosion resistant extended ubolts
- Simple Bolt-on Installation