K 2500 Yukon 4WD V8-6.0L VIN U (2000)
19. For vehicles with 4.3L- engines, install the cooling lines to the radiator.
20. For vehicles with 4.3L- engines and auxiliary cooling, install the cooling lines to the radiator.
21. For vehicles with 4.3L- engines and auxiliary cooling, install the oil cooling lines to the auxiliary oil cooler.
