equal length irs

Max I am still looking for your imput on this. Reason is I have the same idea as Rizzo but mine is almost equal lenth arms so it is very minimal camber. I see no reason to have all of that camber in the rear either, I also took all the toe out of the tbird rear as well. That was discussed in a earlier forum about the tbird rear with max and I concur that there is no need for toe, toe adjustment but no need for it to toe.

I've been trying to figure out how to explain it all without spending an hour typing.

An IRS should be addressed just like an IFS only the axle should be taken into consideration while building. The axles should somewhat follow the suspension, meaning that in a perfect world the axle will share the same instant center as the upper and lower a-arms. This helps to eliminate as much "plunge" as possible and will offer the most useable travel. Equal length parallel arms are just as undesireable in the front as the rear, camber is a good thing... to a point. There are some small advantages to inducing some toe (in or out depending on your needs) but then we are getting into a lot deeper of a conversation. "Side scrub" is what you call the widening and narrowing of the track width as the suspension cycles and is not too much of a concern as long as it's not excessive.