The Peugeot case splits into a left side and a right side. The AX-15 has a front half and a rear half. Also, only look behind 4.0Ls, as the AX-5 found behind 2.5Ls looks like an AX-15, but they are not in any way interchangeable.
AX-15 on the left. Notice the line of bolts at the split along the top of the Peugeot. There's a matching line along the bottom too.