My 1970 needs a sway bar and there are several sizes available, which way should I go and why? I have 1 1/4 in front.
Thanks

I'm running a 1 1/4" front sway bar with a 7/8" stock GM rear sway bar. I am very happy with it, but I have not pushed it to the handling limits so I can not comment on the over/understeer characteristics of this set up. I'm also running 166lbs/in rear coils.

I have the same size sway bars as Bryan and I am also happy with mine but I am not making a G-machine out of mine or trying to get the absolute best possible handling either. So I think a 7/8" or a 1" would be fine.

Brandon

I'm running the 1¼" front and stock GM rear, and I've noticed that when I push it to my limit around a curve, the rear end feels like it wants to come around on me.

But I think spring rates have a big effect on it too. I'm running stock springs all around. I think a 1-1/8" front would balance better for my car, but that's just speculation, not experience.

I'm very happy with it as it is.

I have 1 3/8" HO racing sway bars and they are stiff and heavy! :eek:

I just picked mine up from a shop today I went for the 1 1/4" front and a 1" rear havent run them yet but will install tonight or this weekend still gotta box the arms.

As CJ said spring rate will have an effect to a point, but our cars arn't blessed with alot of sway bar choices. I run 1 1/4" front and 7/8" or 1" rears on all the cars I have had with great results.