Quick answer
A complete JBA rebuildable upper control arm set runs $603 to $853 depending on your vehicle and lift type — that's the arm, the bushings, and the ball joint, all serviceable for the life of the truck. If you're comparing that to an OE (original equipment) or factory replacement arm: those are typically cheaper upfront, but they're a throwaway part — the whole arm gets replaced every time a joint wears out, since nothing on it can be serviced. This guide breaks down what you're actually paying for, and what it costs to keep a JBA arm running instead of replacing it.
What a full upper control arm replacement costs
JBA upper control arm sets run $603 to $853 per vehicle, depending on the model and lift type:
- Spring lift or leveling kit arms (1"–3.5" lift): from $603
- Cradle-drop kit arms, built HD for larger lifts (4"–12"), on platforms like 4Runner, FJ Cruiser, and Lexus GX: $637 to $853
The spread comes down to what the arm has to do, not a quality difference. A spring-lift or leveling-kit arm just needs to correct the caster angle the lift introduced. A cradle-drop kit (also called a cross-member drop or drop-bracket lift) is a different job entirely: it relocates the lower control arms with a drop bracket — offsetting the lower mounting holes 4", 6", or 8" — and adds longer steering knuckles so the truck can clear 34" to 40" tires, while the upper arm itself stays level, just like stock. Bigger tires mean more force hitting the upper control arm under braking and cornering, and those longer steering knuckles add leverage that transfers straight into the upper ball joint. That's why cradle-drop arms are built HD (heavy duty) — at that tire size, it's not optional. Check your specific vehicle's fitment page for the exact price, since it varies by year, model, and lift range.
Why an OE replacement arm can cost you more over time
An OE (original equipment) or factory replacement control arm bolts in for less upfront. But it's a throwaway part by design: when the ball joint or bushing wears out — and on an off-road vehicle, that's a matter of when, not if — there's no way to service just the worn part. You replace the entire arm again.
JBA arms are built the opposite way on purpose. The Max 90 Ball Joint and EZ Lube Bushings are both designed to be rebuilt in place:
"Replaceable ball joints — you can replace the ball joint for under $75.00 per control arm."
That's the real number, not a full-arm replacement cost. A worn joint doesn't mean buying a new arm — it means a $72 to $75 part and about fifteen minutes with a grease gun in between service intervals.
What it costs to keep a JBA arm running
Once you've got a JBA arm installed, here's what maintaining or rebuilding it actually costs:
- Max 90 Upper Ball Joint: $72 (need two for a set of arms)
- EZ Lube Bushing Kit: $67
Spare parts cost
- Max 90 Ball Joint Rebuild Kit: $75
- Ball Joint Boot Set: $18
- A-arm Hardware Kit: $7.20
Compare that to buying a whole new OE arm every time a joint or bushing gives out — because that's a throwaway part, not a rebuildable one — and the math tips in favor of rebuildable pretty quickly, especially on a truck that sees real trail use, where those components wear faster than they would on pavement alone.
Labor and alignment — get this in writing
We're not going to guess a labor number here. Shop rates vary a lot by region and by vehicle — a straightforward bolt-on job is a different job than one with seized hardware or a cross-shaft setup — and a made-up national average wouldn't actually help you budget for your install. What we can tell you: alignment is not optional. Replacing an upper control arm changes caster and camber, and skipping the alignment afterward means uneven tire wear, sometimes within a few thousand miles.
Before you approve any quote, confirm it includes a four-wheel alignment, and ask whether the shop is quoting an OE (throwaway) replacement arm or a rebuildable one — that distinction affects what you're paying for down the road, not just today.
Should you replace one arm or both?
Control arms wear from the same conditions on both sides, so if one is showing play or making noise, the other side is often not far behind. If the wear is from a physical impact — you hit a curb or a rock — replacing just the damaged side can make sense, provided the other arm checks out on inspection. If you're not sure whether you're looking at wear or damage, our 7 Signs of a Bad Ball Joint guide walks through how to tell.
Frequently asked questions
How much do JBA upper control arms cost? $603 to $853 for a complete set, depending on your vehicle and lift type. Check your specific fitment page for the exact price.
Can I replace just the ball joint instead of the whole arm? Yes, if you're running a JBA rebuildable arm — a Max 90 Ball Joint replacement runs $72 to $75, versus buying an entirely new arm on an OE (throwaway) design.
Do I need an alignment after replacing upper control arms? Yes, always. Changing the arm changes caster and camber. Skipping alignment leads to uneven tire wear.
Do I need an alignment after replacing the JBA Max 90 ball joint? No. The new ball joint sits in the exact same location as the old one, so caster and camber don't change — no alignment needed for a joint-only rebuild.
Is it worth replacing upper control arms when they're worn? Yes — a worn ball joint or bushing affects handling, tire wear, and in a worst case, steering control. If you're running JBA arms, "replacing" usually just means rebuilding the arms with new joints and/or bushing for well under $75 each, not buying a whole new arm. See our guide on the warning signs if you're not sure whether what you're feeling is wear.
The bottom line
A JBA upper control arm set costs more upfront than an OE factory replacement arm — $603 to $853 versus a cheaper, throwaway OE part. What you're buying with that difference is the ability to rebuild a worn joint for under $75 instead of replacing the entire arm again. For a truck that sees real off-road use, where joints and bushings wear faster than on pavement, that adds up over the life of the vehicle. Shop upper control arms backed by a lifetime structural warranty at JBA Offroad.