tried to find some photos but no luck mate,
ne way its a crash pan or skid plate whatever people call it now
all it does is protect the engine and transmission from rocks,dirt, rabbits and small children, there nice to have but there not a necessity, they usually start rattling or scraping eventually so ur better of with out it. if u really want it back on just get under the car and line up the holes to some of the cross members, judging by the height of the side it probably goes near ur transfercase and transmission probably off to the side.
and while ur removing guards, its a good idea to remove the front liners in the wheel wells of the front wells. they tend to fall off while driving and get sucked under your front tires an BAM! no steering, usually happens just before a corner lol.