Parts for your 2006 Ford Falcon-Oil seals

2006 Ford Falcon oil seals — purpose, checks, and when to replace

Oil seals are absolutely used across the 2006 Ford Falcon (BF series). Technical sources such as the Ford BF Falcon Workshop Manual (sections 303-01 Engine, 205-02 Rear Drive Axle, and 307-01/02 Transmission), Gregory’s BA/BF Falcon service manual, and common seal catalogues (e.g., SKF/CR, Timken/National) list specific seals for this model, including the crankshaft front and rear main oil seals, cam and timing cover seals, transmission input/output shaft seals, and differential pinion and axle shaft oil seals. So for a 2006 Falcon, oil seals are relevant and fitted from factory.

On this Falcon, oil seals keep engine, transmission, and diff lubricants where they belong, while keeping dust and water out. They’re the quiet achievers that prevent drips on the driveway, protect clutches and brakes from contamination, and help the driveline last longer. Common areas include the front crank (behind the harmonic balancer), rear main (between engine and gearbox), auto or manual transmission output shaft, and the diff pinion and axle ends.

Oil seals aren’t a scheduled replacement item, they’re replaced on condition. During regular servicing (every 10,000–15,000 km), it’s smart to check for weeping around the front of the engine, the bellhousing, the transmission tailshaft area, and the diff nose and axle flanges. Keeping the PCV system clear on the Barra inline-six and ensuring the diff and gearbox breathers aren’t blocked helps prevent pressure build-up that can push seals out.

If replacement’s needed, quality matters. Viton or equivalent high-temp materials handle Aussie and Kiwi heat better than basic NBR in high-load spots. For crank seals, inspect the balancer or crank snout for grooves, a wear sleeve may be needed. A rear main on a Falcon is a gearbox-out job, so it’s often paired with a clutch (manual) or flexplate and converter seal check (auto). Always install flush and square, lightly lubricate the lip as specified, and torque related fasteners to spec from the workshop manual.

Typical red flags include fresh oil trails, a misted underbody, oil on the inside of a tailshaft uni, or diff oil on a rear brake backing plate. Left unchecked, a small seep can become a big leak, so catching it early saves money and mess.

• Watch oil levels between services and top up if needed.
• Fix crankcase ventilation faults before fitting new seals.
• Use OE-spec tools and seal drivers to avoid lip damage.

Popular questions about 2006 Ford Falcon oil seals

Where do oil seal leaks most commonly show up on a 2006 Falcon?
Typical spots are the front crank seal (oil around the harmonic balancer), the rear main (oil at the bellhousing join), the transmission output shaft (slinging oil along the tailshaft), and the diff pinion or axle seals (wet nose cone or oil tracking to rear brakes). A quick inspection on a hoist during routine servicing usually spots them early.

How much does it cost to replace a rear main seal on a BF Falcon?
Because the gearbox has to come out, labour is the big chunk. In Australia or NZ, expect a ballpark of several hundred in labour plus parts, it’s smart to combine it with a clutch on manuals or a converter/flexplate check on autos to make the most of the removal time.

What seal material is best for a Falcon — Viton or NBR?
Both are used, but Viton-style materials handle higher temperatures and modern oils better, making them a solid choice for front and rear crank and transmission applications in local conditions. NBR can still be fine for less demanding locations if it meets OE spec.