The vast majority of cars that we deal with came from the factory with an open rear diff, and most people consider them to be a lost cause when it comes to high performance use.
There are a few surprising applications in Drag Racing however, where the common open rear was the best choice for getting certain types of cars down the track.
Here's the science of how they can be made work when a Posi, Locker or Spool is either not available or not in your budget.
#classiccar #musclecar #diy #differential #welding
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