As I shop for a used 8HP-70 I'm finding a lot of what looks like good deals, but often without the torque converter. The 8HP-70 has a strong reputation for a reliable trouble free transmission. My goal is a daily driver, with a strong torquey engine, so I won't need a high stall speed converter. Thinking a stock torque converter for a 8HP-70 trans from a Charger or Challenger will be fine for a street road vintage pickup. But what cautions should I consider when buying a pre-owned torque converter, especially if i buy one separate from the transmission I buy.