the traction bars i'm talking about is NOTHING like the ones you posted. The ones you posted are pretty heavy duty and looks a lot tougher.
I have a lesser version, that a lot of people here has:
and here's the link: http://www.jamesduff.com/broncoII/tracbar.html
And it does seem like it'll fit your style of ranger
Short Review: I think the traction bars were my BEST investment. Got rid of axle hop and a little quicker off the line.
Again, it's nothing like the ones you posted, but hell, it works for me.
One note: the ones I got, i suggest getting some lithium spray-on grease. If you dont' grease them right, it'll squeak like a ****.. and hard to grease once they're on.... fyi.