Post up the pics...87 j arm - 96 A arm. I'd hope for it to be a 96, just cuz an 87 is OLD, unless it's REALLY nice. Here's what I look for, bolts and nuts that are rounded off or broken, if a guy doesn't have the right hand tools for basic maintenance, it probably has had NO maintenance. If you plan to night ride see if the lights are not broken off, just more immediate expense same with sprockets,tires,brakes. All that to determine initial cost.