Addco 990 way Bar fitment issue

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td71mach1

Slow down for a second and that's where you Finish
7173 Mustang Supporter Member
Joined
Jan 26, 2023
Messages
71
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26
Location
Columbus
My Car
1971 Mach1, 351 4v
I currently have the Addco 990 installed but my wider 275-45/17 rear tires and
rear disc upgrade has presented 2 clearance issues with the Addco 990 sway bar.

First, the tire will rub on the end of the sway bar in hard cornering, see pictures.
Second, the bar interferes with the E-Brake bracket on the rear caliper.

If the bar was .5" narrower neither clearance problem would be an issue.

So, I assume I'm going to have to change out the rear sway bar.
Looks like the Addco 996 sway bar would solve both problems.
Anybody using this bar? Any issues clearing 2.5" dual exhaust and staggered shocks?

My other option is ST Suspension 51035 rear sway bar.
However can't find any pics of it installed and their instructions suck and provide no diagrams of the install.
Any body using ST Suspensions 51035 and can provide any feedback?

Thanks...Tony
 

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I don't have rear disc brakes but I do have 275s. I have about 3/4" clearance on both sides with no rubbing. What wheels and offset are you using?
 
Concour with Sheriff on wheel offset. I'm also running an Addco 7/8" bar with 275x15 with 4.5 backspace 8" wide. Easy 1/2" bar to tire sidewall clearance on mine. No issue with my rear disc brakes.
Instead of an expensive swaybar swap have you considered notching/triming that parking brake bracket a bit? And simply adding a 1/4" wheel spacer for needed clearance?
 

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