If you looking for the right element that fits the Trans Am with the shaker or a Firebird Formula or standard Firebird.. this is it.. as long as its a 6.6 403 Olds.
If your not sure.. look at the engine.. the Starter is on the US Drivers Side. (LHS) but the Fuel pump is on the RHS.. US passenger side. IF the Fuel pump is on the LHS.. its a Pontiac V8 Engine.