Any reason why its hard to find an OBX LS LSD? I know they are not made specifically for 91 LS trannies but the dif should fit from a hydro LS tranny. The quaiffe has the same part number for their dif that fits 90-01 Integra LS trannies, del sol b16 trannies, and 99-00 civic SI trannies. Anybody selling LS difs???