They are designed for daily driving and for extreme racing conditions, without having to change the stock cross-member.  They are soft enough to absorb vibrations for street use, yet rugged enough for racing.  These mounts also have a unique, metal safety locking feature, effectively controlling torque. This feature delivers the extra strength to resist problematic torque forces. Unfortunately, GM used a rubber version of this mount without any kind of safety locking feature.  The interlocking feature of the mount gives you that added confidence against drive train and chassis/frame damage.

Each mount comes with:

    All hardware, offset plate, shim, and metal components on the mount are plated for rust prevention and appearance.

One modification is necessary if using the stock exhaust hanger with this new Poly trans mount.  There is a section of the hanger that will need to be cut/ground away (shown below) to fit correctly.  This is a very easy modification, and does not significantly effect the hanger's strength.  If no hanger is used, then the supplied spacer plate is to be used.  Instructions for installation and for modifying the stock hanger are included with each mount.