Parts for your 2000 Toyota Bb-Centre bearing

2000 Toyota bB centre-bearing: what’s fitted and what isn’t

For the 2000 Toyota bB, whether a centre-bearing is relevant comes down to drivetrain. Technical references including Toyota’s New Car Features for the NCP3# platform, the Toyota Repair Manual (Chassis and Drivetrain sections for NCP30/31/35), and the Toyota Electronic Parts Catalog (EPC) make it clear that the common front-wheel drive models (NCP30 1.3L and NCP31 1.5L) do not use a centre-bearing. These FWD variants have no longitudinal propeller shaft, so there’s no need for a centre support bearing.

Those same sources identify a 4WD variant, model code NCP35, introduced in the same generation. The EPC’s propeller shaft section for NCP35 shows a multi-piece propeller shaft assembly, typically supported by a centre support bearing, used to carry drive to the rear differential. So: FWD bB (NCP30/31) — no centre-bearing, 4WD bB (NCP35) — centre-bearing fitted as part of the prop shaft system.

Why FWD bB models don’t use a centre-bearing? The transaxle sends power straight to the two front driveshafts, keeping everything compact and transverse. With no long shaft running down the car, a centre support isn’t required, which reduces weight, parts count and NVH complexity.

If the vehicle in question is the 4WD 2000 Toyota bB (NCP35), the centre-bearing is part of the driveline’s backbone. It supports the propeller shaft between the transfer and rear differential, keeping the shaft aligned under load, at speed, and across bumps. When it’s healthy, vibrations are minimal and the cabin stays pleasantly quiet. As it ages, the rubber isolator can crack and the bearing can wear, leading to shudder on take-off, a droning or humming that rises with road speed, or a thump when shifting from drive to coast.

Good workshop practice in Australia and New Zealand is to inspect the centre-bearing at each major service or anytime the prop shaft is removed. A tech will check for free play in the bearing, torn rubber, misalignment and rust on the mounting bracket. If wear is found, replacement is straightforward but precise: mark prop shaft phasing, torque fasteners to spec, and re-check driveline angles. Many choose to replace the bearing when renewing universal joints to save on repeat labour.

Driving long-term with a failing centre-bearing isn’t wise, it can accelerate wear on the prop shaft and rear diff mounts, and turn a simple bearing swap into a bigger bill. Keeping it in nick helps preserve smooth take-offs, quieter cruising and longer life for the rest of the driveline. For owners who regularly see gravel roads or carry loads, more frequent checks are a smart move. Using quality OEM-equivalent parts and following the Toyota workshop manual specs will keep the bB’s 4WD driveline tight and tidy for years.

• Common signs of trouble: vibration on acceleration, speed-related drone, clunk on throttle changes.
• Service tips: inspect rubber isolator, bearing play, bracket condition, maintain correct shaft phasing on refit.

Popular questions

How can someone tell if their 2000 Toyota bB has a centre-bearing?
Check the model code on the build plate. NCP30/NCP31 are FWD and won’t have a centre-bearing. NCP35 indicates 4WD, crawl under the car and a propeller shaft running to the rear diff will be visible, typically with a centre support midway.

What are the typical symptoms of a worn centre-bearing on a bB?
Owners usually notice a vibration or shudder on take-off, a humming or droning that tracks road speed, and sometimes a dull thump when lifting off or reapplying throttle. Visual inspection may show cracked rubber around the bearing mount or excessive shaft play.

Is it safe to keep driving with a noisy centre-bearing?
Short, gentle trips may be possible, but it’s not recommended. Continued driving can stress the prop shaft, U-joints and rear driveline mounts, turning a simple bearing replacement into a larger repair. Booking it in promptly avoids extra cost and downtime.