Not worth it, from what I have read. First of all, it is not the plug and play swap some people claim it is. More importantly, it is probably not safe. You will end up with an additional, unsupported u-joint which can bind up, locking the shaft. This seems to be one of the most overrated mods commonly suggested for these vehicles. It will also do absolutely nothing to take the slop out of an old steering box or worn components like Pittman and idler arms or bad tie rod ends. If you have play in the shaft it's the rag joint and that's a $15 part and maybe an hour to change.
There is a true, all steel, aftermarket u-joint if you hate the rag joint so much. I think they make them for your '95 but not years later than that. Can't remember the maker offhand but it's like a $250 part.
