Sway bars

Sanity check. Supposedly this is going to be a street car / driver. At least that is what I tell myself.

So... I have a '68 A-body with a '75 K-frame and QA1 LCAs. I have what I think is an ADDCO '73+ sway bar for the front that I purchased and installed about 25 years ago currently on a shelf. It is yellowish and 1-1/8" solid bar. I have FF 1.12" torsion bars, welded and reinforced K-frame, Borgeson PS, roller bearing idler, and the sector shaft support. I have Spax adjustable shocks. Plan is for 275/35-18 or possibly 285/35-18 tires. Front brake is Dr Diff "stage 4" with the Viper style 4 piston and 13" Baer rotors.

Q1: If I want to go to the lighter Hellwig bar then 55905 is my bar I assume?

Was debating going up to the 1.18" torsion bars, but want to drive it first.

On the rear, springs are mounted in the frame. Mini-tubs and some other clearance enhancements. Debating sliders. May run as large as 355/30-19. Dr Diff 11.7" rear brakes with Baer rotors.

Q2: Rear bar that fits is Hellwig 6908 (E-body) in my case? Does anyone have one mounted with the narrowed inboard springs and can show picture where end link attaches and clearance to spring?

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Q1-

Yes, with the '73+ K frame and the QA1 LCA's you want the Hellwig 55905. That's exactly the combination I run. This isn't the greatest picture but it shows the LCA and sway bar pretty well. I shortened the end links a bit when I installed the QA1 LCA's, I had previously been running 73+ LCA's with stock sway bar tabs and that was the only change going to the QA1's.



I've been running 1.12" torsion bars on my Duster for almost 40k miles now. They're a good street bar with the suspension modifications you have. I actually have a set of 1.18's, but I haven't installed them as of yet, too many other projects. Even with the 1.12's and everything I've done to maintain about 5" of suspension travel I can still use the entire range of travel and occasionally bottom the suspension with the 1.12's, so the 1.18's should still be pretty streetable.

I've also been running the DoctorDiff Stage IV kit, although I didn't spring for the 2 piece rotors. It's a really nice set up with the 11.7" rear disks and a 15/16" master cylinder.



Q2-

So I run the 6908 Hellwig bar on my Duster with just the 1/2" offset, but that results in some angle on the Hellwig end links.

This is 72BBswingers car, which he sold years ago now. But he ran the 6908 Hellwig bar with the full 3" relocation. This is a picture of his car, with the end links mounted to the spring box for the relocation. I would probably reinforce it a bit myself, but this is what he ran. You can see it lines up pretty darn well with the inside of the relocation spring box, at least the way that 72BBswinger did it.