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Complete Guide to CV Axle Replacement for 2006-2007 Toyota Highlander & 2006-2008 Lexus RX400h 3.3L Front Right
A rhythmic click on tight turns is the outer CV joint running out of grease. The rubber boot splits, lubricant escapes, and dirt starts grinding the joint. The front right CV axle for the 2006-2007 Highlander Hybrid and 2006-2008 RX400h is the direct-fit fix — 30 splines at the hub, 24 at the transaxle, 1-year warranty.
A shop quotes $650 to $805 for this job. The axle itself is $115.09 on KOEEP.
What a CV axle actually does
CV stands for constant velocity. Each end of the axle carries a knuckle joint that lets the wheel spin and steer at the same time.
A rubber boot seals each joint and holds the grease in. That boot is the only protection the joint has.
- The boot cracks with age, heat and road salt.
- Grease flings onto the wheel, the shock and the underbody.
- Dirt works into the joint and grinds the balls and races.
- Play develops, and the clicking starts on turns.
Catch a split boot before the clicking and you may save the joint. Once it clicks, the axle is the fix.
Check the joint before you order
Five minutes in a parking lot tells you which joint is worn. Sharp, slow turns load the outer joint hardest.
- Turn the wheel to full lock and drive a slow circle in both directions. Clicking from the right side means the right outer joint is worn.
- Noise that fades when you straighten the wheel points to the outer joint.
- A clunk when you pull away from a stop points to the inner joint instead.
- Vibration that changes with the gas pedal also points to the inner joint.
- Grease slung on the inside face of the wheel means a split boot.
Noise that climbs with road speed and ignores the steering wheel is usually the wheel bearing. You will have the hub open anyway, so spin-test it while the axle is out — the front left wheel hub bearing for this platform covers that follow-up.
A knock over bumps is a different suspect from a click on turns. That path runs through the suspension control arm diagnostics guide.
Why the passenger side takes longer
Plan on about 90 minutes for the right side and 30 for the left. The difference is one bracket.
The right axle passes through an intermediate support bearing bolted to the block. Corrosion bonds that bearing collar to the shaft over the years.
- Soak the bracket bolts and the bearing collar with penetrating oil the night before.
- Unbolt the bracket, then slide the axle out of the bearing.
- Never hammer the axle out through the bearing — heat is the fallback.
The numbers on this axle
This platform has look-alike axles, so match splines and length. Do not shop by photo.
| Spec | Value |
|---|---|
| Fits | 2006-2007 Toyota Highlander Hybrid · 2006-2008 Lexus RX400h, 3.3L V6 hybrid, FWD or AWD |
| Location | Front right, passenger side |
| Splines at the hub (outer joint) | 30 |
| Splines at the transaxle (inner joint) | 24 |
| Compressed length | 38 in |
| Cross-reference | 66-5258 · Toyota OEM 43410-0W160 |
| Price · warranty | $115.09 · 1 year · SKU 296699067502 |
Both joints arrive pre-greased and booted. You fit one complete assembly, with no boot kits or rebuilds.
Which axle your SUV needs
Pick by side and platform, not by price. A look-alike axle with the wrong spline count will not seat.
| Option | Price | Pick it when |
|---|---|---|
| Front right axle | $115.09 | The passenger side clicks or its boot is split — the part in this guide |
| Front left axle | $86.60 | The driver side is the noisy one — same platform, same 30/24 splines |
| Left and right pair | $185.35 | Both axles are original — replace them together on a high-mileage SUV |
| RX330 2004-2006 / RX350 2007-2009 front right, AWD | $87.34 | You own the 2004-2006 RX330 or the 2007-2009 RX350 — AWD only, not the hybrid |
The RX330 2004-2006 and RX350 2007-2009 axle is a different part — 23 splines at the transaxle and about 39.4 in long. Do not cross-order it for the hybrid.
Every axle, boot and joint for these drivetrains sits in the transmission & drivetrain collection.
How to replace the front right axle
Do the first step with the front wheels still on the ground. Vehicle weight is what breaks the axle nut loose.
- Break the stake, then loosen the axle nut with a 30 mm socket while the wheel is on the ground.
- Lift the front end, support it on stands, and remove the wheel.
- Remove the nut, then push the hub stud clear of the knuckle with a puller or a soft drift.
- Free the lower ball joint or the tie rod end as needed, and swing the knuckle outward.
- Pry the inner joint out of the transaxle, levering against the housing and never against the boot.
- Unbolt the intermediate bearing bracket, then slide the axle out of the support bearing.
- Lay the old and new axles side by side and compare splines and length.
- Feed the inner shaft straight into the seal — a nicked seal means a fresh leak.
- Reassemble, torque the axle nut to about 217 ft-lb, and stake a new nut.
- Test drive: slow full-lock circles first, then a highway run.
Some versions bolt the inner joint to the case instead of snapping it in. If yours has bolts, torque them to about 48-60 ft-lb.
The axle job is pure mechanical work. You never touch the orange high-voltage wiring that runs along the underbody.
Spin the hub by hand and feel for grit or roughness. A gritty or loose bearing should go in during the same visit, because the teardown is already paid for. Wipe the transaxle seal lip clean and check it for a groove worn by the old shaft.
Frequently asked questions
Which vehicles does this front right axle fit?
The 2006-2007 Toyota Highlander Hybrid and the 2006-2008 Lexus RX400h, both with the 3.3L V6 hybrid drivetrain. It covers FWD and AWD versions.
Why does my SUV click only when turning?
The outer joint is worn. A turn steepens the joint angle, so the worn parts skip and click.
How long can I keep driving on a clicking axle?
There is no safe mileage number. A seized joint can drop drive mid-turn, so plan the swap soon.
Can I just replace the boot and regrease the joint?
Only if you catch the boot before any clicking starts. Once it clicks, the joint is worn and the whole axle comes out.
Is the 2006-2008 RX400h axle the same as the 2006-2007 Highlander Hybrid axle?
Yes. Both take the same front right axle, listed as interchange 66-5258 and Toyota OEM 43410-0W160.
What torque does the axle nut need?
About 217 ft-lb with a 30 mm socket. Fit a new nut and stake it after torquing.
Is the job harder because the SUV is a hybrid?
No. The work is mechanical, and the high-voltage wiring stays out of the wheel-end area.
Order the right axle before the clicking spreads
The front right, front left and pair listings are in stock for the 2006-2007 Toyota Highlander Hybrid and the 2006-2008 Lexus RX400h. Not sure which one you need? Send a quote request, email support@koeep.com, or WhatsApp +86 181 3883 8291.
- KOEEP listing data — 30/24 splines, 38 in compressed length, interchange 66-5258, $115.09, SKU 296699067502, 1-year warranty (koeep.com)
- Front right axle cross-references Toyota OEM 43410-0W160 and 66-5258 — eBay listing 137502152983
- Spindle nut thread M22 x 1.5 and 38.58 in length on the same application, NCV69039 — Amazon cciyu listing
- Clicking on sharp low-speed turns identifies a worn outer CV joint — AutoZone DIY, "How to Tell if Your CV Axles are Going Bad"
- Passenger side about 1.5 hours vs 30 minutes on the driver side, due to the intermediate shaft — ToyotaNation forum thread on the 2006-2007 Highlander Hybrid
- Front axle nut spec of about 217 ft-lb, Toyota factory service manual reference — Toyota 4Runner forum torque thread
- Inner joint bolt torque of about 60 ft-lb, minimum 48 — ToyotaNation CV axle bolt thread
- Shop replacement cost of $650-$805 for an axle shaft on this platform — RepairPal estimator
- Shared fitment, 2006-2007 Highlander Hybrid and 2006-2008 RX400h, FWD and AWD — Amazon front axle pair listing
- Sister-platform axle, RX330 3.3L 2004-2006 and RX350 3.5L 2007-2009, 23 inner splines, AWD only — KOEEP listing 276998852674