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Install a 7/8″ Rear Mustang Sway Bar

Car undercarriage with upgraded sway bars.

Note: Click thumbnails to enlarge pictures.

By Allan Shepley

The 1971 Mustang equipped with the 351 Cleveland used a 1/2″ diameter rear sway bar while 429 equipped Mustangs (and the Boss 351) received a 5/8″ version. This article details upgrading the rear swaybar to a 7/8″ version.

Note from the Webmaster

The 429 Megasite greatly appreciates the contribution of this article from Mr. Allan Shepley. Allan is the owner of Mustang Central which offers Mustang parts, engine building, restoration services and more (check out Allan’s site at this link: Mustang Central ). He has contributed tech articles to both Mustang Monthly and Mustang & Fords magazine.

~ John Blair

Hand sanding metal rod for etching and refinishing.
Gold sway bar on a car frame
Drilling a hole in metal with a vise.
Material transfer on metal component in vise
Align bracket for drilling with installed bushing.
Applying paste to mark drilling spot on bushing.
Screw securing a vehicle bushing in place.
Drill midpoint between holes for screw installation.
Bushing before and after modification for bracket.
Side grinder with 36 grit disc on bushing
Original vs. aftermarket bracket and bushing comparison.
Two different metal brackets on display.
Installation guide for 7/8 inch rear sway bar
Refinished metal bar hung in workshop.
Undercarriage with upgraded sway bars for better handling.
Vintage car on a racetrack corner

Helpful Links: National Parts Depot (NPD)