Parts for your 2008 Toyota Bb-Cv boots

2008 Toyota bB CV boots: what they do and how to look after them

For the 2008 Toyota bB (QNC20/QNC21 series), CV boots are absolutely relevant and fitted. Toyota’s drivetrain/axle repair manual for the bB specifies inner and outer constant-velocity (CV) joints on the front drive shafts, each protected by rubber boots, while the Toyota electronic parts catalogue lists “Boot Kit, Front Drive Shaft” for these models. Those technical sources confirm the vehicle relies on CV boots to keep its CV joints sealed, lubricated and safe from road grit.

On this bB, the CV boots are the ribbed rubber bellows at each end of the front half shafts. Their job is simple but critical: retain the special moly grease inside the CV joints and keep out water, sand and grime. When a boot perishes or tears, grease flings out, contaminants get in, and the joint can wear quickly—cue clicking on turns, vibration under load, and a costly CV or driveshaft replacement.

As part of regular servicing for a 2008 Toyota bB, it’s smart to inspect the CV boots every 10,000–15,000 kilometres or at each service. A quick check with the wheels off—look for cracks in the rubber, splits in the bellows, or grease mist inside the wheel and on the lower control arm. If there’s any sign of damage or grease loss, replace the boot straight away rather than waiting for noise to develop.

• Use a quality boot kit with new clamps and the correct molybdenum-disulphide CV grease.
• Clean the joint thoroughly if the boot has torn, if there’s pitting or roughness, consider a joint or complete shaft.
• Fit and crimp the clamps properly—no sharp edges, no pinched rubber, and no grease leaks.
• Re-torque the axle/hub nut to factory spec and avoid striking the ABS tone ring.

Driving on a split boot invites water and grit that act like grinding paste. In Australian and New Zealand conditions—heat, UV, corrugations and coastal air—boots can age faster. Many owners opt to replace boots in pairs on the same axle if the rubber is showing its age. After a road trip down a gravel road or a wet winter, it’s worth another look under the bonnet and around the front hubs. Keeping those boots intact keeps the bB smooth, quiet and predictable through the turns, and it’s a lot cheaper than a new driveshaft.

Popular questions about 2008 Toyota bB CV boots

How can someone tell if a CV boot on a 2008 bB is failing?
Common signs include grease sprayed around the inside of the wheel or underbody, visible cracks or tears in the boot, clicking or clacking on tight turns, and vibration under acceleration. A quick torch check during a service often spots small splits before they become big problems.

Can a torn CV boot on a bB be repaired, or does the whole shaft need replacing?
If caught early, a torn boot can usually be replaced with a new boot kit and fresh grease, keeping the original joint. If the joint has run dry or ingested grit and now clicks or feels rough, a remanufactured or new shaft is typically more economical and reliable than rebuilding the worn joint.

How often should the CV boots be inspected on a 2008 bB?
They’re best checked at every service (about every 10,000–15,000 km) and after harsh use like gravel or beach driving. In hotter or coastal areas in Australia and NZ, rubber can age faster, so regular inspections help catch issues early.