I believe this is correct for the following applications:
71 302 351 Ford w/Idler wo/AC
71 302 351 400 Ford w/PS wo/AC
71 302 351 Torino w/Idler-wo/AC or w/PS wo/AC
71 302 351 Torino Mustang w/Idler-wo/AC or w/PS-wo/AC
71 BOSS 351 Mustang std_cool w/PS
71-72 302 Maverick w/PS wo/AC
72 302 400 Ford w/PS-wo/AC
72 351 Ford w/PS or Idler wo/AC
72 302 351 400 Torino w/PS-wo/AC
72 302 351 Torino w/Idler wo/AC
72 302 351 Mustang w/PS-wo/AC or w/Idler_pulley-wo/AC