Ball Joint
hard DIY~3h jobWritten in plain English and reviewed by the eli5cars editorial team · Last reviewed June 2026
What it does
A ball joint is exactly what it sounds like — a ball inside a socket, just like your shoulder. It connects the steering knuckle (where the wheel bolts on) to the control arm. Because it's a ball in a socket, it lets the wheel move up and down over bumps AND pivot left and right for steering simultaneously. The ball sits in a greased plastic cup inside a steel housing. When the grease runs out or the plastic cup wears, the ball rattles around in the socket — you hear clunking, the car wanders, and at full failure the wheel can fold under the car.
Fix-vs-Skip Money Panel
DIY Cost
~$80
parts only
Shop Cost
~$350
parts + labor
Estimates only — real prices vary by region, vehicle, and shop. Updated 2026.
Buy the part
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So what do I do now?
Three honest paths for fixing ball joint — pick the one that fits your time, tools, and risk tolerance.
Door 1 — DIY it
We don't have a curated parts/tools list for this repair yet. Based on its hard difficulty rating, this typically needs specialty tools, a lift, or real mechanical experience — most drivers are better off in Door 3.
Door 2 — Buy the part
Already have someone lined up to install it (or handy friend), and just need the part?
Search Ball Joint on AmazonHeads up: some links below are affiliate links (including Amazon Associates) — if you buy through them we may earn a small commission at no extra cost to you. Details: /disclosure.
Door 3 — Go to a shop
Fair price band
$263–$438
parts + labor, typical US pricing
Ask the shop
- Are the parts OEM or aftermarket?
- Is the diagnostic fee waived if I approve the repair?
- Can I get an itemized estimate before you start?
- What warranty do you offer on the labor?
Frequently asked questions
How do I test for a bad ball joint at home?
Jack up the car safely and support it on a jack stand. Grab the tire at 12 o'clock and 6 o'clock and try to rock it in and out. Any wobble — even slight — at the 12-and-6 position indicates a bad ball joint. (Grabbing at 9 and 3 tests tie rods instead — make sure you test both positions.)
Is driving with a bad ball joint dangerous?
Yes — this is a safety-critical part. A ball joint that has noticeable play can separate without warning, especially under hard cornering or over a large pothole. When it separates, the wheel folds under the car and you lose all steering control. Do not drive on a ball joint with confirmed play.
Do I need a special press to replace a ball joint?
Many OEM ball joints are pressed into the control arm and require a hydraulic press or a ball joint press kit (available at AutoZone for free loan). Some aftermarket control arms come with the ball joint pre-installed, making the job bolt-on instead of pressed.
How long do ball joints last?
Typically 80,000–150,000 miles with normal driving. Aggressive off-road use, large potholes, and neglected alignment (which puts uneven stress on the joint) all accelerate wear.