New GM/ACDELCO speedometer gear.  This is a 19 tooth (white) plastic gear.  This will fit Muncie, Saginaw and Powerglide transmission, also TH350 but ONLY with a 1" OD gear housing (where the o-ring sits).  This will not fit the 2" housing, nor TH400/700R4.  Please be advised that proper speedometer calibrations are based on differential gear ratio and tire size (overall diameter), and need to be calculated properly.  If you are not sure what you need, please contact us prior to ordering! Fits the following:

67-81 Camaro

67-81 Firebird/Trans Am