Detroit Speed has engineered a brand new, not rebuilt, steering box for the the 1968-'91 GM C and R series trucks. This box provides the performance and feel you would expect from a late model performance car through "Detroit Tuned" rack and pinion valve technology, low-friction gear design, and 12.7:1 quick ratio gearing. This new power steering box is lighter than the factory steering box and allows the use of your original power steering pitman arm. Steering Shaft Kits: - 1968-'72 C10: https: