"Will a Mustang Seat for an 1500 Fuel Injected Classic fit my 1500 Carb'ed Classic?" Or vice versa this question has been addressed like a thousand times, but it keeps coming up. Mustang will always say, "No.", but that's not true.
The front rider seat of any 1500 Classic or 1500 Nomad will fit any 1500 Nomad or Classic. The pillion pads can work if you have the little parts that make the difference, but the bolt hole spacing the fenders is the same. If you have a Carb'ed Classic Mustang seat and want to put it on a FI, buy the little bracket from Kawasaki. If you want to put an FI Classic or Nomad Stocker onto your Classic then make sure you get the under piece that bolts to the fender.