Superior has a bolt-in solution to the problem of your coils coming loose under down travel.

Using these items allows a larger shock by up to 4 inches longer to be used as the coil will be able to drop down approximately 4 inches below the top coil seat before it falls out.

It is recommended to fix the bottom of the coil to the diff when using these.

The dropouts are bolt-in items and are sold as a pair.