Used convertible floor X brace.  This metal brace attaches to the back of the transmission crossmember and the floor. Good condition, has some scratches. For V8 w/ Automatic transmissions. This only works with factory transmission mount brackets on convertibles. Fits the following:

98-02 LS1 V8 Camaro w/ Automatic transmission
98-02 LS1 V8 Firebird/Trans Am w/ Automatic transmission

The item in the picture is the actual photo of the item being sold.