Parts for your 2005 Toyota Bb-Universal joints

2005 Toyota bB universal joints — what’s actually on the car

Based on Toyota’s own technical documentation for the NCP30/NCP31 bB platform (same underpinnings as the first‑gen Scion xB), the 2005 Toyota bB is a front‑wheel‑drive hatch using a transaxle with front drive shafts that run constant velocity (CV) joints at both ends. The Toyota Electronic Parts Catalog lists front “shaft assy, drive” with inner/outer CV joints and boots, and there’s no propeller shaft or driveline universal joint shown for this model. That aligns with the Toyota repair manual for the platform and standard driveline texts (e.g., Bosch Automotive Handbook and SAE guidance), which note that FWD layouts use CV joints to maintain constant rotational speed at large steering and suspension angles, where a traditional universal joint (U‑joint) would introduce velocity fluctuation and vibration.

So, universal joints aren’t used in the bB’s driveline. There is, however, a small universal joint on the steering intermediate shaft (between the column and rack) — that’s a different job entirely and not a driveshaft U‑joint.

Why the bB doesn’t use driveline universal joints:

• FWD packaging: No rear diff or prop shaft, so there’s nowhere a driveline U‑joint would go.
• Steering angle needs: The front axles must transmit power while turning and moving up/down — CV joints keep velocity constant, where a single U‑joint does not.
• NVH and durability: CV joints reduce vibration and shudder in FWD setups, which keeps the bB smooth around town.

What owners should actually look after:

• CV joints and boots: Inspect the inner and outer boots for splits, grease fling, or perishing every service or 10,000 km. Replace torn boots promptly to avoid joint wear.
• Noises on lock: Clicking while turning under throttle usually points to an outer CV joint, not a “universaljoint”.
• Steering intermediate shaft U‑joint: If there’s a notchy feel or free play at the wheel, check the intermediate shaft. The joint is typically non‑serviceable, replace the shaft if seized or worn.

For anyone searching “2005toyotabb universaljoints”, the short story is: driveline U‑joints aren’t fitted, the car runs CV joints up front and a small U‑joint only in the steering linkage. Keep those CV boots tidy and the bB will stay happy and quiet.

Popular questions about 2005toyotabb universaljoints

Does a 2005 Toyota bB have universal joints in the driveline?

No. Technical listings in Toyota’s EPC and the model’s workshop procedures show a FWD transaxle with CV joints on the front shafts and no rear prop shaft, so there are no driveline U‑joints. If you’re chasing a clunk or click while accelerating or turning, think CV joints or engine/trans mounts rather than a universaljoint.

What’s the clicking on full lock — are the universaljoints gone on a 2005 bB?

Clicking on turns is almost always the outer CV joint, not a universal joint. Look for torn outer boots or flung grease near the front wheels. If the boot is damaged, a boot kit can save the joint if caught early, if it’s been noisy for a while, a replacement shaft or CV joint is the go.

Is the steering column universal joint on a 2005 Toyota bB serviceable?

The intermediate shaft U‑joint is generally sealed and not serviceable. If there’s stiffness, notchiness, or play felt through the wheel, inspect the shaft for corrosion or binding. Replacement of the intermediate shaft is the normal fix, followed by a steering angle check and a short road test to confirm feel.