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  • 1996 - 2004 SN95 Mustang -General/Talk-

Noisy LCA

  • Thread starter Thread starter crazyone64
  • Start date Start date Aug 1, 2025
C

crazyone64

5 Year Member
May 2, 2018
100
7
28
Toronto Canada
Aug 1, 2025
#1
  • Aug 1, 2025
  • #1
I had my 03 mach1 looked at by a mechanic and I mentioned a loud clunking noise over cracks/bumps, coming from the rear/center. He mentioned he had my LCA on his Mustang and the LCAs are the culprit. I've replaced most if not all suspension parts and bushings.
It's pretty annoying. They're about 4-5 years old, don't think they've seen more than 5k miles.

I have a pair of 79-04 Mustang Pro Street Chrome Moly Lower Control Arms

Why would this be happening? and how to resolve?
 

Noobz347

Stangnet Facilities Maint Tech... Er... Janitor
Admin Dude
Jan 4, 1985
42,915
21,087
234
Box behind Walmart
Aug 1, 2025
#2
  • Aug 1, 2025
  • #2
I would consider the lowers in your link to be some of the worst for a street driven Mustang.

Urethan bushings at both ends in a 4-link, are a really good way to promote suspension bind.

I would look for a better set of lowers; Something with Delrin or a hem joint at one end. Others may have other suggestions but I'm thinking Kenny Brown or Maximum Motorsports.

Are you still using the stock uppers? How old are those?
 

manicmechanic007

5 Year Member
Sep 26, 2017
2,524
709
143
Roy, Utah
Aug 2, 2025
#3
  • Aug 2, 2025
  • #3
I got one too about poly bushings
Speedway sold me some garbage springs with crappy poly bushings for a nice straight axle setup I bought
The rest of the kit was okay, great even
The cheesy poly spring bushings looked like they would last about a week on a golf cart
I had to modify (build) some Jeep Rubicon springs for my build (straight axle setup on a 56 Ford 2 door post)
I see those lower arms all over on Camaros and cringe EVERY time
 

manicmechanic007

5 Year Member
Sep 26, 2017
2,524
709
143
Roy, Utah
Aug 2, 2025
#4
  • Aug 2, 2025
  • #4
Those bushings work fine on a jacked up Toyota sway bar mount
High pressure or stress even with a sleeve, those bushings squawk out quick
 
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