You should be able to use the compressor, alternator and power steering brackets from any truck or even car up through I guess about 80 or so. Just make sure you get all of the brackets and mounting harware like bolts, spacers, pulleys. Going with a later models brackets you may have to change water pumps since there is a short and a long pump. I think that 80 was the last year for the long ac compressor after that GM went to that pancake self eating compressor.