This is a GM/CHEVY 4th gear on the countershaft for the multi piece cluster. This gear has 39 teeth and a 6.34 low ratio only. The gear is for the NV4500 in an early Chevrolet /GM. This will not work for the Dodge! You can identify this transmission in a Chevy by the cast "C-16812", "C-18157" etc. This transmission has an iron case with an aluminum top cover! This transmission usually comes in the 1990-95 Chevy 3/4 ton or 1 ton gas and diesel trucks.