• 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5
Rear sway bar install
I just ordered an addco 7/8 heavier rear sway bar to replace the tiny factory piece, part #990 01. Just wondering if anyone has done this on a 71 to 73 fastback? I have the 1 1/8 front installed already and am hoping for a decent cornering ride when I finally finish it lol.
Well, if your car was originally equipped with a competition suspension and your just upgrading the hardware to a thicker bar, then ignore this.

If your car did not have a rear sway bar from the factory and your adding one now then the addco rear sway bar kit is terrible in my opinion, I had major issues with fitment and clearance.

Under full suspension compression the sway bar hardware can damage the main fuel line.

I ended up taking mine off and throwing it in a box.

Otherwise I saw the biggest change by just using a thicker front bar.
Thanks for the quick reply, I was on the fence for ordering the adjustable 3/4 inch addco for like $135 bucks but one of my spare cars had the competition suspension in it and I decided to put the 5 leaf packs with the sway bar brackets in my car and I ordered the 7/8 replacement for the factory sway bar. This should be the best way to not interfere with my exhaust when I install it and less problems than you were having hopefully. Thanks
What I hate is they don't offer a correct rear sway bar conversion kit for non-competition suspension cars.

The competition suspension rear sway bar is the perfect shape compared to the terrible retrofit adco bar.
I agree with 72 H Code on the non-OEM style bar. The replacement bar should work great with the 1 1/8 front bar. There is an article on the 429 Mustang and Cougar Megasite that shows the installation.


Possibly Related Threads...
Thread Author Replies Views Last Post
  Question About Rear Shocks Scotty 8 439 08-23-2017, 01:21 PM
Last Post: protouringstang73
  Rear Tire Rubbing on One Side ptrmzr 12 1,529 08-22-2017, 10:23 PM
  Half leaf on rear springs? Stanglover 15 764 07-19-2017, 07:50 AM
Last Post: Stanglover
  Rear Drum Brake Job Advice red73mustang 10 647 06-04-2017, 03:57 PM
Last Post: red73mustang
  Rear Parking Cable for DISC brakes 1973stang 5 425 04-14-2017, 05:46 PM
Last Post: Otto
  Rear Drum to Disc Conversion 1973stang 14 690 03-06-2017, 07:39 PM
Last Post: Stanglover
  Front sway bar bracket fitment issue zsmith71 1 280 03-06-2017, 11:08 AM
Last Post: Stanglover
  Rear sway bar suggestion 73' mach 1 19 1,010 01-18-2017, 03:38 PM
Last Post: droptop73

Users browsing this thread: 1 Guest(s)