Perfect Lift offers a full range of suspension block kits to add that extra rake to your 4WD for towing your caravan, boat trailer or work tools. Our block kits have been specially designed to support your 4WD Holden Colorado RG in toughest towing and weight carrying conditions. These block kits are designed and manufactured using high quality casted steel. We offer a wide range of block kits that fits perfectly to your Colorado RG. Upgrading your vehicle with our block kits will add more height to the rear of your vehicle with lifetime warranty on PERFECTLIFT products. By choosing Perfect Lift you are choosing the best and Peace of mind.