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Prothane 6-311 Cobra IRS C-Arm Polyurethane Bushing Kit 1999-2004

(1999-2004 Ford Mustang)

Part of: Prothane Control Arm Bushings for Corvette

Other options in this family: Prothane 7-303-BL Prothane 22-201 Prothane 4-216 Prothane 7-236 Prothane 7-243

Manufacturer

Picture for manufacturer Prothane

Part Number

6-311
12 reviews
Sale Price

$79.24

Estimated ship date Wednesday, January 13

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Live-in-stock inventory

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Fitment guaranteed

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Product Details

The Prothane 6-311 is a polyurethane C-arm bushing kit designed for the independent rear suspension (IRS) on 1999–2004 Ford Mustang Cobras. Prothane's high-performance polyurethane material replaces the factory rubber bushings in the lower control arms, restoring precise suspension geometry and eliminating the flex and deflection that worn OEM bushings allow.

Key Features:

  • Made from Prothane's proprietary polyurethane compound for superior durability over stock rubber
  • Provides optimum compliance resistance to maintain accurate caster and camber alignment settings
  • Reduces control arm movement and deflection under hard cornering and acceleration loads
  • Resistant to oils, solvents, and road chemicals that degrade rubber over time
  • Direct-fit replacement — no permanent modifications required
  • Includes all necessary bushings for the C-arm application
  • Pre-greased or grease-compatible design for smooth articulation and long service life

Upgrading to the Prothane 6-311 bushing kit is a straightforward improvement for any 1999–2004 Mustang Cobra owner looking to sharpen handling response and preserve alignment settings under performance driving conditions. Prothane bushings are manufactured in the USA and backed by the brand's reputation in the performance suspension aftermarket.

Products specifications

Fits

1999-2004 Ford Mustang

Position

Rear

Prop 65

No

Simple.

Which the pic represented actual item. Had to check other sites to compare the item # and make sure I was ordering the right thing.

Good

Easy process.

all good

Got the tires I wanted in 2 days time.

Good Job!

Ordered a couple of items. The first was a air intake kit. I had put in all my info for my truck and chose one from the list to order. Won't fit. Called to tell them and they asked if I had called manufacturer...ummm no. Said I needed to contact them to verify wrong part. They were closed, so went to website. The part they sent me was a universal fit- for cars, not trucks, but did find right model- $90 more. Called back autoplicity and was told I need to go through email to get an RA# to return wrong part- site says I can call. Been on hold for over 20 mins and still waiting. Hope the Nerf bars I ordered fit! Update- they called me back, got my RA#. Very pleased with how Nick handled things- it was what I expected the first time. He verified the NERF bars will fit and will be changing the website so the universal intake does not show on list for vehicles with larger air outlets. Changing my rating to show my satisfaction with how it was eventually handled.

Lowest prices of what I was looking for and super fast shipping!!

1st order with Autoplicity. Very easy and very fast shipping. Highly recommended.

Great company best prices around and would highly recommend

"Customer service was very helpful, very good prices. On its way the next day."

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