2003-2022 4Runner CV Axle Pair – Front Left & Right (Driver and Passenger) CV Joint Axles for Toyota 4Runner, Alloy & Carbon Steel, 4343004070
2003-2022 4Runner CV Axle Pair – Front Left and Right
This 2003-2022 4Runner CV axle pair is a set of two front CV axle shaft assemblies, one for the driver side and one for the passenger side, listed for the 2003–2022 Toyota 4Runner. The supplier gives a single reference number for both axles, 4343004070, with a compressed length of 25.5–27.6 inches (647–702 mm) and 30-tooth external splines at both the inner and outer ends. Easy Life Markets sells the two axles together for 4Runner owners and workshops who would rather renew both front axles in one job.
On a four-wheel-drive 4Runner, the front differential sends power out to each front wheel through a CV axle. Each axle has an inner joint that slides in and out as the suspension travels and an outer joint that lets the wheel steer, and both are packed with grease and sealed by flexible boots. A 4Runner that sees dirt roads, mud or a suspension lift works these joints and boots harder than a road car does. When a boot tears, the grease is thrown out and grit gets in, and the joint soon starts clicking or vibrating. You can read more about how a constant-velocity joint works.
What Is Included
- 2 x front CV axle shaft assemblies (left and right)
Each axle is supplied as a complete assembly with both joints and boots already fitted. Axle nuts, cotter pins, dust seals and differential seals are not listed as included.
Specifications
- Product type: Front CV axle shaft assembly, pair
- Position: Front left and front right
- Reference number: 4343004070 (also written 43430-04070)
- Compressed length: 25.5–27.6 in (647–702 mm)
- Input spline: 30 teeth, external
- Output spline: 30 teeth, external
- Boots: Neoprene, pre-packed with high-temperature moly grease
- Material: Alloy steel and carbon steel
- Colour: Black
- Brand: Unbranded aftermarket
- Quantity: 2 pieces
- SKU: CJFU26592520001
Checking Fitment
The supplier lists this pair for:
- Toyota 4Runner, 2003–2022, front left and front right
That is a long run of model years covering two generations of the 4Runner, so please do not rely on the year alone. Front CV axles are only used on versions with a driven front axle, and a two-wheel-drive 4Runner does not have them. Suspension options can also change the axle that is fitted. To be sure before ordering:
- Look up the front drive shaft part number for your vehicle in a Toyota parts catalogue using your VIN and compare it with 4343004070.
- Measure an old axle compressed and compare it with 25.5–27.6 in (647–702 mm).
- Count the splines at both ends of the old axle. This pair has 30 teeth at the differential end and 30 at the hub end.
- Check for a lift kit. A raised suspension changes the working angle of the axles, and some lifted vehicles need different parts.
If you are not sure, send us your VIN and we will help you check before you order.
Signs Your Front CV Axles Are Worn
- Clicking or popping when turning with four-wheel drive engaged
- Grease flung onto the inside of the wheel, the lower control arm or the frame
- A torn or cracked boot, often on the inner joint
- Vibration under acceleration that eases when you lift off
- A clunk when taking up drive from a stop
Worn wheel bearings, ball joints or a front differential problem can cause similar noises, so it is worth inspecting the whole front end before buying parts.
Installation Notes
- Park on level ground, loosen the axle nut with the wheel on the ground, then raise and support the vehicle on stands.
- Following your service manual, release the lower ball joint or other parts needed to swing the hub outward and free the outer joint.
- Pull the inner joint out of the front differential carefully so the oil seal is not damaged.
- Fit the new axle, make sure the inner end is fully seated, and tighten every fastener to the specified torque.
- Check the front differential oil level, then road test in two-wheel and four-wheel drive.
This job involves steering and suspension parts, so professional installation is recommended unless you have the experience and the tools.
Why Replace Both Sides Together
The two front axles on a 4Runner share the same mileage, the same trails and the same weather. When one boot has failed or one joint has started clicking, the other side is usually close behind. Fitting the 2003-2022 4Runner CV axle pair in one session means the front end only comes apart once, and both sides start again with fresh joints and boots.
Looking After CV Axles on a 4x4
Have a look at the boots after any off-road trip and whenever the vehicle is on a lift. Mud and sticks can nick a boot without you noticing, and a small split is easy to miss until grease appears on the wheel. Rinse the underside after driving through mud or salted roads, and avoid hard throttle with the steering on full lock in four-wheel drive, because that is when the outer joints are under the most strain.
Tools and Parts to Have Ready
You will need a large socket and breaker bar for the axle nut, a torque wrench, a pry bar or slide hammer for the inner joint, and solid axle stands. It is sensible to have new axle nuts, cotter pins and differential seals to hand if your service manual calls for them, along with the correct front differential oil for topping up. Lay the new and old axles side by side before fitting, so you can compare the length and both spline ends.
Who This Axle Pair Is For
This set suits owners of four-wheel-drive Toyota 4Runner models from 2003 to 2022, independent garages, and off-road enthusiasts who have confirmed the 4343004070 reference number, or matching length and spline counts, for their vehicle.
Common Questions
Is this a genuine Toyota part? No. These are unbranded aftermarket CV axles listed under the Toyota reference number 4343004070. They are not genuine parts of the vehicle maker.
Are the left and right axles the same? The supplier gives one reference number, one length and the same spline count for both axles in this pair. Compare them with your old axles before fitting.
Will they fit a two-wheel-drive 4Runner? No. A two-wheel-drive 4Runner does not use front CV axles.
Buy the 2003-2022 4Runner CV Axle Pair at Easy Life Markets
You can order this front CV axle pair right here. The current price and availability are shown on this page. Please read our return and refund policy before buying.
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