TeraFlexJL/JT Dana 30/44 HD Ball Joint Kit w/out Knurl

This is one rare TeraFlex product: It's actually priced well, and it works better than competitors' options. I'm rolling around on 35" tires, and I noticed my OEM joints were suffering the dreaded and all-too-common clicking noise when turning. These fixed the issue and made an immediate improvement in handling, wandering, and ride quality.Even if you aren't rolling on oversized tires, you should replace your OEM joints. The JL's factory ball joints are junk. They use plastic bearing races which should, frankly, be illegal on a critical, loading bearing steering component like a ball joint.These joints are all-metal. They're better than competing options because of the double grease fittings, too, which lubricate the entire bearing inside. The JL's ball joints only rotate along a single axis, and they rotate far less than 180 degrees. That means with a single grease fitting, you'll never get full lubrication of the bearing inside, which winds up introducing a wear spot. Then, boom--you have a loose, wobbly joint.This is a flaw that other "HD" ball joint kits (like Synergy and Dynatrac) suffer. Dynatrac's joints are rebuildable, but they're overpriced and only have one grease fitting. Synergy's only have a single fitting, too.Unless you're rock crawling weekly, rebuildable joints are overkill. It really isn't difficult to replace your ball joints, and replacing them regularly means you're doing something you should be doing anyway: Inspecting your front driveline components by removing your brakes, unit bearings, knuckles, axle shafts, and steering linkages.A word of caution when using a ball joint presser to install these: The raised grease fittings will run into the top cup that comes with most press kits. You could damage or break the raised threaded holes.You'll want to add a spacer underneath that cup for extra clearance. Some large washers work. I wound up jerry-rigging mine with two Allen keys sandwiched between the cup and the axle. Or grab one of the taller cups from your kit and cut it down just enough to fit the clamp and jack screw.

Had some movement in my factory ball joints, upgraded to these and completely eliminated death wobble. Very happy with this upgrade. Was even able to install myself with an adapter kit so saved myself at least $1000 from the dealership.

These ball joints made my day. I have a 2018 Jeep Wrangler JLU Rubicon V6 and it had been suffering from the dreaded death wobble issue. I went to three different shops, and they all gave me advice on what needed to be replaced so I followed their advice. However, nothing they suggested completely resolved my DW problem and I went to two different off-road shops and a Jeep dealership. Before experiencing DW, I added a Mopar lift. Once I started experiencing the DW issue, I installed front and rear adjustable track bars. Next, I installed a new Synergy tie rod and drag link. Also, I installed a new steel steering gear box which was recommended by the dealership and an off-road shop. The parts reduced the frequency of DW but did not fully cure the problem. After doing much research, I came a across an article on a Jeep forum that mentioned the OEM ball joints in 2018-19 Jeeps are not very good. They use a metal on plastic architecture which doesn't last long especially if you have over sized tires or spacers. Who buys a Jeep without adding larger tires or spacers? Anyway, I mentioned to the dealership that this may be the issue and they told me that the ball joints had nothing to do with the DW issue. Regardless, I took a leap of faith and purchased these TeraFlex ball joints based on quality and affordability. I must say they did not disappoint. They are made very well, much better than the OEM ball joints. The greatest thing of all is that I have not experienced one death wobble incident since I installed them. Before I would I have to pull over 3 times if I drove 10 miles anywhere. These are well worth the price. I installed them myself and it was my first-time installing ball joints. They are a little difficult to install but any install for ball joints would not be easy.

The factory Jeep JL ball joints are garbage, mine only lasted 50K miles. I had a completely new suspension and was still getting a shimmy at higher speeds when hitting big bumps. Tested the ball joints and couldn't really see any noticeable play. Knowing how bad of a design the factory ball joints were I decided to install these for piece of mind. Completely eliminated my shimmy and Jeep drives great again. Teraflex makes good products. I highly recommend.

I purchased a new/used set of these ball joints for my Jeep Gladiator. I know buying open box anything comes with risk, and as you can see, this product was damaged from a previous buyer who must have returned them. My guess is that someone tried pressing the new ball joints in and crushed the top of the ball joint where the grease zerk goes. This makes installing the grease zerks impossible without drilling and maybe gluing the serks into place.If you buy these used, check for this damage BEFORE you take your Jeep apart