At the end of the day, a ball joint is a wear part. Grease it properly and it will last a long time, but on a lifted truck that sees varied terrain, bigger tires and increased suspension height, it will eventually wear out.
On many upper control arms, the ball joint is built into the arm, so a worn joint means buying a whole new arm. Every JBA upper control arm uses our Max 90 ball joint instead. It bolts in, and you can grease it, rebuild it or swap it on its own. While you may already be thinking, "Why don't all control arms have this feature?" we decided to list a few more reasons why it's a no-brainer for someone looking to upgrade their upper control arms. Here are seven ways that having JBA replaceable ball joints makes your life easier, and even saves you money in the long run!
The JBA Max 90 replaceable ball joint at a glance
| Spec | JBA Max 90 ball joint |
|---|---|
| Used in | Every JBA upper control arm |
| Range of motion | 90 degrees |
| Construction | CNC-machined 4140 chromoly, made in our Souderton, PA shop |
| Mounting | Four bolts |
| Tools needed | Basic hand tools, no press |
| Swap time | About 20 minutes per side (JBA estimate) |
| Alignment after a swap | Not needed |
| Sides | Fits left or right |
| Greasing | 3–4 pumps every 3,000–5,000 miles |
| New ball joint | $72 each |
| Rebuild kit | $75, rebuilds two joints |
| Warranty | 1 year |
1. You replace the ball joint, not the whole arm
When a ball joint built into the arm wears out, the joint and the arm go in the trash together, even if the arm itself is still perfectly good. You end up paying for new steel, new bushings and new powder coat just to fix one worn joint.
JBA arms carry a lifetime structural warranty, so the arm is built to stay on your truck. When a Max 90 ball joint wears out, you replace just the joint for $72. For the full math, see our upper control arm replacement cost guide.
2. All it takes is basic hand tools, no press
A pressed-in ball joint needs a ball joint press to get out, and that usually means a trip to a shop and a bill for labor, or a few hours on YouTube and a bunch of special tools you'll only use once. The Max 90 bolts into the arm with four bolts, so you can swap it in your own driveway with basic hand tools.
You don't have to pull the upper control arm off the truck, either. To make things easier, every replacement Max 90 ball joint comes with the boot, bolts, lock nuts and grease fittings, so you have everything you need in one box.
How to install a JBA Max 90 ball joint.
3. No alignment needed after a ball joint swap
A new JBA Max 90 ball joint bolts into the same four holes as the old one, so your caster and camber stay right where they were. That means you can swap a ball joint without booking an alignment afterward.
Replacing the whole arm, swapping an adjustable ball joint, or changing your lift height is a different story. All of those tasks can change your front-end geometry, which requires an updated alignment.
4. One spare fits either side
The Max 90 ball joint isn't left- or right-specific, so one spare covers both sides of your truck. You can order it for your vehicle so you get the right ball stud, then keep it in your recovery kit so it's there when you need it.
Pair that with basic hand tools and no alignment, and a worn ball joint far from home becomes a quick roadside fix instead of a trip-ender.
5. You can grease it in place, so it lasts longer
A sealed ball joint can't be greased. Once the factory grease breaks down, wear speeds up and there's nothing you can do about it. Every Max 90 has its own grease fitting, so you can keep it fed without taking anything apart.
Give each joint 3 to 4 pumps every 3,000 to 5,000 miles, and again after any day in mud or water. We recommend Mobilgrease XHP 222 Special. In 2020 we also redesigned the boot to fully seal the joint: a nylon tie now holds it in a machined groove, keeping mud and water out.
Some customers have gone 100,000 miles on a set of JBA ball joints. Life depends on your tires, terrain and driving, but greasing is the one part you control.
6. You can rebuild it instead of buying new
The Max 90 ball joint is also rebuildable. When the internals wear, the Max 90 rebuild kit rebuilds two ball joints for $75. It includes new ball studs, ball sockets, spring washers, custom boots, hardware and the spanner tool you need for the job.
The rebuild kit fits JBA ball joints made after July 22, 2020. You can spot them by the groove for the boot and the two holes in the top cap. If your joint is older, a new Max 90 is the way to go. And if all you've got is a torn boot, a boot set is $18.
7. Parts are in stock and backed by JBA
A replaceable part only makes your life easier if you can actually get it. We make the Max 90 ball joints in our Souderton, Pennsylvania, shop, and replacement joints and rebuild kits usually ship within 24 hours on business days.
The Max 90 ball joints fit every JBA upper control arm. Just pick your vehicle when you order, so you get the right ball stud. JBA ball joints are covered by a one-year warranty, and if you're not sure which part you need, our team will help you sort it out.
What does it cost to keep a JBA ball joint going?
| Problem | Fix | Cost |
|---|---|---|
| Routine maintenance | Grease, 3–4 pumps every 3,000–5,000 miles | A few cents of grease |
| Torn boot | Ball joint boot set | $18 |
| Worn internals (joints made after July 22, 2020) | Max 90 rebuild kit (rebuilds two joints) | $75 |
| Worn or older joint | New Max 90 ball joint | $72 each |
Prices as of November 2026.
How do you know when it's time?
Jack up the front wheel and rock it at the 12 and 6 o'clock positions. Any clunk or movement at the ball joint can mean that it's wearing, but it can also come from the joint's internal spring. Clunking over bumps, wandering steering and uneven tire wear are other signs. Our 7 signs of a bad ball joint guide walks through each one.
The bottom line
Every ball joint wears out eventually. With a Max 90 ball joint, you get to choose what happens next: grease it, rebuild it, or bolt in a new one with basic hand tools in about 20 minutes, no alignment needed. Either way, the arm stays on your truck.
Shop JBA upper control arms by vehicle, or grab a replacement Max 90 ball joint. For more on how our arms are built, see the 5 powder coat prep steps we never skip and JBA ball joints vs. uniballs.
Frequently asked questions
Can you replace just the ball joint on an upper control arm?
It depends on the arm. On many upper control arms, the ball joint is built into the arm, so a worn joint means a new arm. On JBA arms, the Max 90 ball joint bolts in with four bolts, so you can replace just the joint for $72.
Do I need a ball joint press to replace a JBA ball joint?
No. The Max 90 bolts into the arm with four bolts, so basic hand tools are all it takes. You don't have to remove the upper control arm, and JBA estimates about 20 minutes per side.
Do I need an alignment after replacing a JBA ball joint?
No. A new Max 90 bolts into the same four holes as the old one, so your caster and camber don't change. If you replace the whole arm or change your lift height, get an alignment.
Are JBA ball joints left- or right-specific?
No. A Max 90 fits either side, so one spare covers both. Order it for your vehicle so you get the right ball stud.
How long do JBA ball joints last?
It depends on tire size, terrain, driving style and how often you grease them. Some customers have gone 100,000 miles on a set of JBA ball joints, but not every truck will. More on ball joint life.
How often should I grease JBA Max 90 ball joints?
Give each joint 3 to 4 pumps every 3,000 to 5,000 miles, and again after any day in mud or water. JBA recommends Mobilgrease XHP 222 Special. See JBA's greasing guide.
Will the Max 90 rebuild kit fit my ball joints?
The rebuild kit fits JBA ball joints made after July 22, 2020. You can spot them by the groove for the boot and the two holes in the top cap. For an older joint, buy a new Max 90 ball joint instead.
Will a Max 90 ball joint fit a non-JBA control arm?
No. The Max 90 is made to fit JBA upper control arms. Choose your vehicle when you order, so you get the right ball stud for your truck.
What is the warranty on JBA ball joints?
JBA ball joints, bushings and powder coat are covered for one year. The arms themselves carry a lifetime structural warranty. See the full JBA warranty.
How do I know if my ball joint is worn?
Jack up the front wheel and rock it at the 12 and 6 o'clock positions. Any clunk or movement at the ball joint can mean wear, but some movement can also come from the joint's internal spring. Clunking over bumps, wandering steering and uneven tire wear are other signs. See our 7 signs of a bad ball joint.