The spacer that is bolted to the steering knuckle as part of a bracket lift keeps the tie rods at the stock height and angles (tie rod stays stock height/angle in relation to the frame and pitman/idler). Everything else is dropped.

The Downey brace helps keep the idler arm from bending as easily (very easy to do with big tires off road), but does nothing to improve bushing wear/life. I had one on my '86 for a while and it worked ok. I have a new one for a T100 or later model IFS Toy that I never installed if anyone is interested.

The TC idler is the ultimate though. It is a worthwhile investment and will probably save you money in the long run (no more worn out idlers and reduced alignments and tire wear).