I am not 100% sure, but any of the camaro or trans am fans either LS1 or LT1 fans from 98-02 will fit onto the 28" Radiator of the Gm trucks, because the camaros and transams had the same size radiator i believe. not exactly sure, but i have a buddy with a 98 gmc and he put the same fans on as i did, LS1 fans, just he bought a Flex-a-lite controler because he didnt want to pay for a tune and the harness.