84 blazer 305,700r4, 208, 12 bolt 4.56, and 35" tires. The reason im getting a new one , is because mine has a crack on the shaft. So now I am looking for a replacement for this. the tranny was rebuild 2 years ago. The blazer is a DD and some offroading. Also I need a torque converter this weekend, and since i live right next to PAW i was asking about the B&M then sell.