I ran one in a hot 406 small block vega for a while. it was tubbed, and had 14x 32`s on it. the powertrax locker wouldn`t hold up under the power I had. went to a full spool.
That's true. They are nowhere as strong as a Detroit Locker.
I will say that the Monza I had that Detroit in was also tubbed with 33 Mickeys on the back. Because the sidewall was so tall, it muted the locker's noise to a degree, but it was still loud.
