the online ones are the same as the "Moog" brand ones you can buy at O'reillys, i was really pissed after all the work i did trying to find actual replacement parts turned out to be just generic pieces. but they work pretty well and are cheaper than the factory part. the dealership was the only place i could find the actual piece, also try looking up the price for the 89+ bump stops instead, they should be cheaper but the same part.
also try getting new spring isolators from energy suspension to replace the nasty old ones in the front
a couple of pics of my setup
they dont look half bad when you get them installed