Rob_G

Some Googling I did says when you can't get your alignment right with the factory parts but I'd like to hear some more opinions/experiences if possible.

TIA

utkinpol

dog bones are not related to lowering. they are installed to remove rubber from joints in the rear axle suspension so car will have less deviation in the suspension geometry under load in turns.
for non-tracked car it les absolutely 0 relevance.

when car gets lowered down to cup car standard with tires diving under fenders you need bump steer arms, those are different animals, also, it is absolutely got nothing to do with a street driven cars and technically you should not lower car down to the level where bump steer arms are required if you plan to use car on public roads.

if you are curious how it looks like - see at the bottom of the tarett page. bump steer arms got a sliding rod instead of fixed monoball, so when wheel hits a bump it does not upset geometry of the suspension.
http://www.tarett.com/items/996-997-...-arms/list.htm

Tom@TPC Racing

There are some folks who use adjustable dog bones to change the angle of the rear uprights, which changes the camber angle. But consequentially also changes the dynamic behavior of the car. Personally, I wouldn't do it for this purpose.

OP, if you goal is to improve rear tire wear on a lowered car without compromising rear stability for street use, then IMO it is best to the work with the stock rear camber eccentrics to get close to -1.5 to -1.7 degree of rear camber and then set the rear toe with adjustable rear toe links such as this-

Edit- Oops forgot to add the link- http://www.tpcracing.com/tpc-racing-...toe-links.html