1978 Chevrolet Pick-up Truck Driveshaft K20 - Manual Trans. - 3 Spd. - 162T Trans. - Tremec Trans. - w/ 7200/8600lb GVW Front Axle - Measures 23 7/8In. center of u/joint to center of u/joint - - Front guaranteed to replace your current 1978 Chevrolet Pick-up Truck Driveshaft K20 - Manual Trans. - 3 Spd. - 162T Trans. - Tremec Trans. - w/ 7200/8600lb GVW Front Axle - Measures 23 7/8In. center of u/joint to center of u/joint - - Front. 1978 Chevrolet Pick-up Truck Driveshaft comes new OEM 1978 Chevrolet Pick-up Truck Driveshaft aftermarket new 1978 Chevrolet Pick-up Truck Driveshaft of remanufactured 1978 Chevrolet Pick-up Truck Driveshaft K20 - Manual Trans. - 3 Spd. - 162T Trans. - Tremec Trans. - w/ 7200/8600lb GVW Front Axle - Measures 23 7/8In. center of u/joint to center of u/joint - - Front.