Where can you found the zerk's on a 91 Chevy c2500?

On a 1991 Chevrolet C2500, the grease fittings, or zerk fittings, are typically found on the front suspension components, such as the upper and lower ball joints, and the tie rod ends. Additionally, you may find zerk fittings on the U-joints of the driveshaft. Check under the vehicle for any additional components that might have grease fittings, especially if they have been replaced or serviced. Always refer to the vehicle's service manual for specific locations and maintenance recommendations.