Out back, the fuel tank was removed, and on the work bench, the GT fuel pump was replaced with a Shelby GT500-style twin-pump assembly. This also required the addition of a second pump-driver module and running additional power wiring the length of the car. The P-51A's Stage 3-spec rear suspension components were mostly installed here. In this photo, only the rear brakes remain to be upgraded. Here's a factoid: Roush Stage 3 suspension hardware (except for the springs) is red; Stage 2 counterparts are blue.