I'm trying to find the part number for a 1993 fjz80 rear diff companion flange. I bought a pinion seal p/n 90311-38047. But I can't find the Companion flange Part number. Also if I'm replacing the flange can I reuse the dust shield that goes on the back of the flange? I haven't taken it apart yet, but dust shield looks good. I'm just guessing the flange is grooved since the seal is leaking a lot.