2WD. Front. Left.1996-99 4.3 LITER. Right.1996-99 4.3 LITER. Seal. A component which prevents a leak at the Exhaust Pipe. Exhaust Crossover Gasket. Exhaust Manifold Flange Gasket. Exhaust Pipe to Manifold Gasket. Converter and Amplifier. Crossover. Manifold Flange. To Manifold.