They do NOT have the Moog Problem Solver ball joints installed in them and do NOT have grease fittings. Hope this helps someone down the road. The CK and K are Moog's Premium line of control arms. They have an excellent reputation. 2) If so, Is the metal frame of the control arm CK/K-level quality, even though the ball joint and bushing are (most likely) not? It is neither inferred nor implied that any item sold by CARiD.com is a product authorized by or in any way connected with any vehicle manufacturers displayed on this page. Don’t purchase! The tie rod ends were installed in March of this year to pass the state safety inspection. 2302(C)). The Warranty period begins on the date the product is delivered. Learn More. If you’d like to call or live chat our amazing customer service team they would be happy to help find you the part you are looking for. As a part costs less money, it must be constructed with cheaper components. If you feel comfortable renting a press and installing the ball joint yourself you can save some money on top of the lower price for parts. Your experience seems to mirror several others in regard to RK series control arms. Hello Edwin! If tightened before it binds the bushings and causes premature wear. Watch and Learn I then bought a set of CK series UCAs for my car – 2003 Mercury Marauder. In short, Moog is definitely not exclusively made in America because they can not provide their immense coverage otherwise. this is very confusing. When I check the web sites – both for MOOG and the supplier I used, it shows the BOTH the RK80052/54 AND CK80052/54 arms as forged arms for the Ranger It is very difficult to even found those RK versions. First off, very sorry to hear about you and your son’s experience. the bushings are coming apart. I always expect good quality and reliable service. However, I do not think you want the Moog RK part. All the part numbers on the boxes were verified as correct after checking and rechecking. The OEM arms are forged and the MOOG CKs I received were forged as well. Thanks for sharing Ken. MOOG Problem Solver products incorporate proven design and engineering features for like new steering, ease of installation and longer life. VortecJeep Powered by Uranium-235. Thanks for leaving the comment Peter. Most of the fact checking and research I have done shows a consensus that forged arms are better than stamped. MOOG WHEEL BEARING AND HUB ASSEMBLIES. They said that this control arm is actually moving to an RK series because it’s a low-volume part. My understanding was that they’re trying to do it in a way that doesn’t effect the end price as much, but my honest guess is that it cannot help but make them cost at least a little bit more. I bought front lower control arms (RK620524 & RK620525) and fell apart in less than a year. The Premium CK line has a limited lifetime warranty, and the RK has a 3 year warranty that are both handled through our awesome customer service team at DST. If you have any other questions please let us know. Given the price difference I would get the R-series. The RK series ball joints failed after about 16,000 miles. The ball joints were inspected by the owner who is a ASE Certified Advance Level Specialist and ASE Certified Master Technician. In the case of most older cars that have been upgraded over the years and increased performance drivetrain and aftermarket big brake systems, the OEM strut rods tend to have failure if poly material is selected. Did you buy the Moog R-Series or the Problem Solver? So much easier to just remove the old and install the new. We know that a squeaky suspension can be super irritating. As soon as I can get an American made AC Delco hub, this piece of garbage is going back for a refund. Starting with the CK and K. Whether you see a “K” designation or a “CK” designation, you are getting the same part. The local Advance Auto Parts gladly exchanged it for me. Joined: Aug 24, 2005 Location: Concord, NC. CK (K): Moog Problem Solver Starting with the CK and K. What I need to know is one thing: WHERE IT WAS MADE, with zero caveats. It’s possible that the problem could be environmental instead of with the part itself. Let me tell you my experience with Moog control arms / ball joints and Beck Arnley tie rod ends which I believe are both Federal Mogul brands. In December 2017, four of the five wheel studs sheared off, without warning, while my son was driving on the highway, 150 miles from home. The same applies to Movotech's, but not sure about ACDelco's . Why would anyone want to put back the same bad quality part again? The age old saying of “You get what you pay for” is certainly true here. I thought I was purchasing quality repair parts, but you are simply living off your name recognition and reputation while selling, as I mentioned above – garbage. CK (K): Moog Problem Solver Starting with the CK and K. Years ago there was only one MOOG part number K7211, but today they offer a standard grade RK7211 that is similar to the competitors you listed, ALL with plastic bearings. 5 years ago, many of their control arms were easily over $200 each! Moog Problem Solver control arms incorporate proven design and engineering features to provide a comfortable ride. It is a high-quality suspension part that is crafted to meet the daily demand of your driving. That was the year the company first produced a front-end replacement part recognized by mechanics as outperforming the factory original. As always with the products I order from CARiD I was/am satisfied. 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