unarchive In The Box of 6309 keyboard_arrow_down
- 2 of Rear Control Arm Bushings - 64049
- 2 of Metal Sleeves - 60673 (3/4 X .134 X 2.400 inches)
- 2 of Thrust Washers - 64050
- 1 of Super Grease - 19-1750-001
lock Warranty Information keyboard_arrow_down
- Lifetime Warranty. Prothane guarantees all Prothane Suspension Parts to be free of defects in materials and workmanship (not due to abuse, neglect or misapplication) for the total time the vehicle remains with the original purchaser of the product(s). Should the products fail to meet these conditions, Prothane will replace the product, free of charge. This excludes any and all related labor charges. The product must be shipped to Prothane (postage prepaid) along with a copy of the original receipt."
Prothane Control Arm Bushings
A control arm bushing plays a vital role in a suspension. Replace those faulty O.E. rubber bushings with Prothane's polyurethane control arm bushings. These polyurethane bushings provide the longevity and performance needed to maximize a suspension's efficiency.
Prothane's polyurethane is a firmer bushing than the O.E. Not only does this increase the longevity of the bushing but gives the suspension a boost in handling performance. With a firmer bushing, there will be a slight increase in NVH (noise, vibration, and harshness), but most drivers prefer the boost in performance in spite of that.


The Faulty O.E.
As your suspension travels, a rubber control arm bushing is repeatedly stretching and flexing. After a while, the center sleeve begins to sag and your suspension alignment is throw out of whack. The sagging will go on until the rubber fails completely.
Use Prothane's Super Grease
Control arm bushings are a high stress part, so be sure to use the supplied Prothane's Super Grease to lubricate the bushings during installation. Its super important that you lubricate each bushing well to prevent any squeaking. If you'd like some extra grease just in case, pick up an extra 3 pack.


Product Reviews for Rear Control Arm Bushing Replacement | Mustang 79-03
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Prothane 6309
starstarstarstarstar" Review 1 Year Later "
I am extremely happy with urethane bushings and spring isolators. Quality bushings at a great price. Thank you.
verified_user Verified Buyer - Dave Zaglinski - . Prothane 6309 - 5 out of 5starstarstarstarstar" Very satisfied with the item "
Hi, I haven't had time to install the bushings yet but I can say that they are of very good quality and wouldn't hesitate to recommend to others. And also thanks to EnergySuspensionParts.com for the fast shipping really enjoyed my shopping experience with you guys..
verified_user Verified Buyer - Jason Gauthier - . Prothane 6309 - 5 out of 5starstarstarstarstar" Great "
Fairly easy to install. Excellent quality and have had no problems with the parts. I'll use your parts again next time I need suspension components!! Thanks
verified_user Verified Buyer - Mark Lorenz - . Prothane 6309 - 5 out of 5