Parts for your 2003 Ford Falcon-Cv boots

2003 Ford Falcon CV boots — what’s fitted and what matters

Based on the Ford BA Falcon Workshop Manual (Section 205-04 Rear Drive Axle/Differential), the Ford Microcat parts catalogue, and common Australian workshop references (Gregory’s/Max Ellery BA–BF manuals), a 2003 Ford Falcon sedan (BA series) uses constant-velocity (CV) joints with protective rubber boots on the rear half-shafts because it runs independent rear suspension. The front hubs are not driven, so no front CV boots are used. BA wagons and utes of the same era with a live rear axle don’t have rear CV half-shafts, so rear CV boots aren’t used on those variants. That means CV boots are relevant to the 2003 Falcon sedans (and IRS-equipped models), but not to the front end, and not to live-axle wagon/ute rears.

On IRS-equipped 2003 Falcon sedans, CV boots do a simple but critical job: they keep grease in and the Aussie elements out of the rear CV joints. Each rear half-shaft has inner and outer CVs that let the suspension move while the wheels are driven. The rubber boot seals the joint, holding high‑moly grease and blocking water, dust, and road grit. Once a boot splits, grease gets flung around the underbody, the joint runs dry, and contaminants chew the bearing tracks, leading to clicks, clunks, and vibration under load.

Good servicing for a BA Falcon should include a quick CV boot inspection at every service interval. Look for perishing, cracks near the folds, loose or rusty clamps, and grease mist on the rear control arms, inner guards, or diff housing. High‑kilometre Falcons often show boot wear, especially where the exhaust runs close by and heat hardens the rubber. If a boot is torn but the joint’s still quiet and smooth, a boot kit with fresh CV grease and new stainless clamps is the smart, budget-friendly fix. Cable ties are a no‑go, they don’t seal properly and will leak.

If the vehicle’s been driven with a torn boot and there’s clicking on take‑off or a shudder on acceleration, the safer bet is replacing the affected joint or the complete shaft assembly. When fitting, use the correct grease volume, clean mating faces, and torque fasteners to spec per the Ford workshop manual. After refit, check for play, rotate the shaft through its angles, and road test. Many shops inspect both sides together, if one boot has failed from age and heat, the other often isn’t far behind.

For BA wagons/utes with a live axle, CV boots aren’t used at the rear because the driveline employs a solid axle and tailshaft with universal joints rather than independent half‑shafts and CVs. That design doesn’t require CV boots, which is why parts catalogues and the Ford workshop literature don’t list rear CV boots for those variants.

Are CV boots fitted to all 2003 BA Falcons?

Sedans with independent rear suspension have CV boots on the rear half‑shafts. Wagons and utes with a live axle don’t use rear CV boots. The front end of all 2003 Falcons is non‑driven, so there are no front CV boots.

What are the signs a Falcon’s rear CV boot needs attention?

Tell‑tales include grease splatter around the rear suspension, a rubbery-burning smell if grease hits hot exhaust sections, perished or split rubber, and later on, clicking or vibration under acceleration as the joint wears.

Is it worth replacing just the boot, or go for a complete shaft?

If the boot has only just failed and the joint is still quiet and smooth, a boot kit and repack with quality CV grease is cost‑effective. If there’s noise, notching, or it’s been run dry, a new joint or complete shaft is the better long‑term fix.