New Pioneer flexplate (automatic transmission flywheel).  This is a stock replacement flexplate.  This is a 153 tooth (12 3/4" diameter) and has a counterweight on it, and is for 1-pc rear main seal 305/350/LT1 engines, which is all factory for the applications we have listed below.  For 700R4/4L60E applications.  Fits the following:

86-96 Corvette w/ 350 TPI/LT1 engine and 700R4/4L60E transmission
86-97 Camaro w/ 305/350/LT1 V8 engine and 700R4/4L60E transmission
86-97 Firebird/Trans Am w/ 305/350/LT1 V8 engine and 700R4/4L60E transmission