As hunter said, yes and no. An AX-15 from a TJ/YJ will bolt to the engine, but there are some differences in the back half of the transmission. I have a TJ trans in mine and had to create the transfercase shifter bracket side that bolts to the trans. Plus the tranny mount is different and the TJ/YJ trans will clock or rotate the t-case up a bit. It mean better ground clearance, but can interfere with the floor of the truck depending on how you work out the tranny mount and xcrossmember.
Then there's the issue with amost all AX-15s, spline count. Early AX-15s may have the 21 spline shaft to match your t-case, but for sure 91+ will have a 23 spline. 94.5+ will have the external slave. I simply joined my current master line to the new slave line using a $2 compression fitting from the hardware store.
Oh, and the Peugeot does NOT share bellhousing with the AX-15, so you'll need to get that with the trans.
Some good info here if you haven't read it already:
http://www.jeeptech.com/convtrans/ax15swap.html