Rear sway bar rate - Where to start?

[MCMLXIX]

I'd go 2.5 to 3.0 deg/G. To start, do the math of an existing "upgraded" sway bar to figure out what it's rate is, then find a bar that matches that rate with your arms.

By the way Stock Car Products has the same parts as Speedway for much less.

Matt,
I'm not sure I understand your deg/G either. The swaybar chart lists rates in pounds @ 5 degrees of twist...

I dont have a set of scales and the car is in little tiny pieces... so I cant really check corner weights....

Also I see the standard size seems to be 37 1/2 inches.... so here is the rate chart for that length of bar ... http://www.1speedway.com/swaybar375.htm

John,
I figured I would make it adjustable with 2, maybe 3 holes. I will have to figure out some type of bracket on the frame. Right now the crossmember is about 10" from the bar. So I am basing my choice of bar on that dimension....

Here is a mock up pick of where I want to run the bar... up tight under the diff housing... the round bar is supposed to be the sway bar and the other "stuff" was just to hold it in place....