This 1-1/2" Retaining Ring from Miller Industries is used on many different
assemblies including boom, Subframe, recovery boom, wheel lift boom, underlift,
dual and single winch extendable boom, and dual and single winch non-extendable
boom assemblies. These assemblies can be found on many Century, Challenger,
Champion, Eagle, Holmes, and Vulcan Wreckers. See the brochures tab for a full
list of assemblies and part schematics.