Warranty
All of the company's suspensions come with the abuse-proof Limited Lifetime Warranty against bending or breaking of the control arms.
Powder Coating
Grade 8 Nut Inserts
Clevite Rubber Bushings
Clayton Off Road presses these mechanically bonded bushings into a heavy-duty 2 ¾” O.D. housing and use them on the axle side of the lower control arms. They provide better road noise and vibration isolation vs. any poly bushing or even the Currie Johnny Joints. The advantages of using poly joints in a suspension is simply cost savings. They are much cheaper to produce, easer to assemble and do not require a machined housing to be pressed into, thus saving money.
Johnny Joints
Hands down these are the most reliable articulating joints on the market and provide years of service with minor maintenance. Service parts are readily available, fairly inexpensive, about $8 per joint and only require a set of snap ring pliers and a vice to change. The advantages of a Johnny joint vs. a heim joint are in its actual design. A heim joint has a metal outer race, usually some sort of Teflon coating, and then a metal spherical center ball. First problem is when a heim joint wears out, you have to replace the entire heim joint which is much more costly then simply rebuilding the joint at $8 a piece. Second problem is that heim joints don’t come with any grease fittings. They rely on that Teflon coating, and once that wears out and starts to squeak, there is not much you can do. A Johnny joint comes with a grease fitting, which allows you to grease the joint eliminating any squeaks or noises. And most importantly a heim joint doesn’t absorb any impact. It is metal on metal, so any bump in the road, or bolder field offroad, you are going to feel more of the impact. A johnny joint is similar however that metal spherical ball is encased in a high density "tough 88" urethane that allows for some give.
Trussed rear 4-Link
This system eliminates the rear trackbar. A truss welds on over the rear differential. Two upper control arms are triangulated to keep the axle centered under the vehicle and also provide pinion angle adjustments. The truss also strengthens your rear axle tubes making them less prone to bending.
Pro series arms use forged joint joint adjusters at both ends. The company's standard arms use a forged johnny joint at one end to allow flex, and a clevite mechanically bonded rubber bushing which is pressed into a CNC machined housing at the other end which better isolates road noise and vibrations. Customer who plan on competing, racing, and intend to abuse their suspension systems usually prefer the pro series arms. The johnny joint uses a harder urethane bushings which will hold up to abuse better. Customers who use their Jeep as a daily driver and a weekend warrior usually prefer a softer quieter bushing.
Yes.
The straight upper control arm is used on the passenger side. The bent or angled one is used on the driver side. The angle is done for additional clearance for a high pinion axle. It may not make a difference on a D30 but with a HP D44 and HP D60 this angle make a difference.
Yes. Control arm bushings, and trackbar bushings are available too.
There are many reason. The company's reputation for a quality product, customer service and high level on knowledge on the products that are sold. But every website probably says the same thing. Please do some research about the company, sure you will come back.
Structurally, square tubing is stronger in the application that are being uses it in. Now this people have been arguing over for years. Is square stronger, round DOM, chrome moly, solid. The company knows its suspension systems are the strongest on the market. Once you see one, you will be convinced. And to help take any doubt out of your mind, the company offers a lifetime warranty on all control arms. If you bend or break any of Clayton Off Road control arms for any reason, it will be warrantied.