Parts for your 2007 Mazda Axela-Universal joints

2007 Mazda Axela universal joints — are they actually used?

Short answer: not in the driveline. The 2007 Mazda Axela (BK series, equivalent to the first‑gen Mazda3) sold in Australia and New Zealand is front‑wheel drive, so it doesn’t run a propeller shaft with universal joints. Instead, it uses constant‑velocity (CV) joints on the left and right front drive shafts. This is confirmed by the Mazda 3 (BK) Workshop Manual for 2004–2009, which details inboard and outboard CV joints in the Driveshaft section and shows no prop shaft assembly. The Mazda BK electronic parts catalogue for AU/NZ likewise lists CV axles and boots, not driveline U‑joints. General driveline references (e.g., Bosch Automotive Handbook and standard SAE driveline texts) also note that transverse FWD layouts rely on CV joints rather than universal joints.

Why no universal joints? CV joints transmit power at a constant rotational speed even while steering and as the suspension moves, which is exactly what a FWD hatchback needs. A single Cardan (universal) joint introduces speed fluctuation at an angle and is better suited to long prop shafts in RWD/4WD layouts, usually in pairs to cancel out that fluctuation. With no rear differential or prop shaft on AU/NZ 2007 Axelas, there’s simply nowhere for driveline U‑joints to live.

It’s worth noting there is typically a small universal joint in the steering intermediate shaft on many vehicles, including the Axela, but that’s a steering component, not a driveshaft U‑joint. If someone’s chasing a “U‑joint” for a 2007 Axela’s drivetrain, what they really need is CV joint or complete driveshaft service parts.

• Driveline on 2007 Axela (AU/NZ): CV joints on front drive shafts, no prop shaft, no driveline U‑joints.
• If you’re hearing clicking on turns or see torn boots, you’re dealing with CV joint issues, not U‑joints.
• Steering feel that’s notchy or binding can be the steering column U‑joint, a separate part from the drivetrain.

FAQs

Does the 2007 Mazda Axela have universal joints?
Not in the driveline. It uses CV joints on the front axles. There may be a small U‑joint in the steering intermediate shaft, but that’s unrelated to the drivetrain.

What joints are on the front axles and how are they serviced?
They’re CV joints. Inspect the rubber boots every service, if a boot is split or leaking grease, replace the boot promptly or the whole shaft if the joint has worn. Clicking on full lock, grease spray around the inner guards, or vibration under throttle are common CV symptoms.

Could universal‑joint problems be the cause of a driveline clunk on this car?
Unlikely. On this model, a clunk is more often a worn CV joint, lower control arm bush, or an engine/gearbox mount. Steering column U‑joint issues usually show up as stiff or notchy steering rather than a driveline clunk.