BAMM! Thanks Carl.
Both are factory AC cars. I measured the '74 Dart & thought it was ~7/8"...will verify once thoroughness of cleaning is verified.
What is the effect of putting a .87 bar in a car that has a .85 bar in it?
OK, sooooooo, are we building a drag car-ish thing or a Pro Touring-ish ride or just upgrading over OE parts?
Adding a sway bar will make a greater difference is how the car drives than the torsion bar increase. Good shocks will also have a greater impact, but the bigger bars are still an improvement, but bigger IS better. How much of your money do you want us to spend?