D60005 - Dana 60 Forged Inner "C" (All Sizes)Reid Racings Dana 60 70 Inner Cs (part # D60005) are based on the Dana 70 forging and are machined to be a direct replacement for the kingpin Dana 60 knuckles used on GM, Ford, and Dodge front axles and for custom heavy duty axles. Forged and heat treated for maximum strength, we pre machine the Cs for several popular tube sizes (3. 0,3. 125, 3. 5, 3. 75, and 4. 0 inches) but they are easily fixtured if you wish to modify them for custom bore sizes.