Parts for your 2018 Ford Focus-Universal joints

2018 Ford Focus universal joints: what’s actually fitted?

Short answer: traditional driveline universal joints (U‑joints) aren’t used on the 2018 Ford Focus. According to Ford’s Workshop Manual for the LZ/ Mk3 platform, the front drive system uses constant‑velocity (CV) joints on the half‑shafts (Front Drive Halfshafts – Section 205‑04). That’s the case for the common front‑wheel drive variants (Trend, Titanium, ST). Even the all‑wheel drive Focus RS carries a two‑piece propeller shaft that’s serviced as an assembly with CV‑type joints, not serviceable cross‑type U‑joints (Driveline/Driveshaft – Section 308‑07A). Ford’s parts catalogue for 2018 corroborates this layout: it lists CV joints/axle assemblies and no separate rear prop‑shaft U‑joints. The only “universal” joint on a typical Focus is the small steering intermediate shaft joint (Steering Column – Section 211‑04), which isn’t part of routine driveline servicing.

Why no U‑joints? With the engine driving the front wheels, the shafts must articulate through large steering and suspension angles while keeping wheel speed smooth. Classic cross‑type U‑joints create speed fluctuation at higher angles, which can cause vibration. CV joints maintain constant angular velocity, give better NVH (noise, vibration and harshness), and package neatly in the front subframe. That’s why Ford specifies CV joints for the Focus platform across the board, and sells them as complete axle/prop‑shaft assemblies rather than greasable, serviceable U‑joints.

What owners should service instead is the CV gear. As part of regular servicing:

• Inspect CV boots for splits, perishing or grease sling around the inner guards and underbody.
• Listen for clicking on tight, low‑speed turns (outer CV) or shudder under load (inner tripod joint).
• Check for vibration on acceleration that eases off when coasting, which can indicate inner joint wear.

If a boot is torn and grease has escaped, prompt replacement of the boot or the complete axle can save bigger bills. Ford’s procedure typically favours replacing the affected driveshaft assembly for durability. The steering intermediate shaft’s small U‑joint isn’t greasable, if there’s notchiness or play felt at the wheel, it’s replaced as a unit using the factory alignment and torque specs.

Technical references: Ford Workshop Manual (LZ/Mk3) Sections 205‑04 (Front Drive Halfshafts), 308‑07A (Driveline/Driveshaft – AWD/RS), and 211‑04 (Steering Column/Intermediate Shaft), Ford 2018 Focus parts catalogue listings for half‑shafts and propeller shaft assemblies.

Popular questions about 2018 Ford Focus universal joints

Does a 2018 Ford Focus have universal joints?
For driveline work, no. The FWD models use CV joints on the half‑shafts, and the RS AWD propeller shaft is a sealed assembly with CV‑type joints. There is a small universal joint in the steering intermediate shaft, but it’s not a serviceable driveline U‑joint.

What joints does the Focus use instead of U‑joints?
It uses Rzeppa‑style outer CV joints and tripod‑type inner CV joints on the front axles. These keep wheel speed constant through big steering angles and offer better refinement than cross‑type U‑joints.

Do universal joints on a Focus need maintenance?
The typical greasable U‑joint service doesn’t apply. Focus CV joints are sealed, maintenance is about inspecting boots and replacing the axle if wear or contamination is found. The steering intermediate shaft U‑joint is also non‑greasable and is replaced if it develops play or stiffness.