Individual Trailing Arms with Fitting Position Front Axle, Rear Axle for FPV FORCE 8 BF Sedan

Nolathane individual trailing arms let you replace a single rear trailing arm on your BF Sedan FORCE 8 without buying a full set. When one arm has been bent by a rock, rut or kerb, has rusted through at a mount, or has worn out ahead of the others, an individual arm restores correct axle location at that corner and keeps the repair cost proportional to the damage.

Individual arms suit live-axle passenger vehicles, performance and classic cars, utes and 4WDs. Each listing shows the vehicle, axle, side and position the arm suits, so you can match the exact arm that needs replacing.

The Job a Rear Trailing Arm Does

A rear trailing arm connects the axle to the chassis or body and runs roughly lengthways under the vehicle. It holds the axle in the correct fore-and-aft position while letting it move up and down over bumps. On a typical four-link rear end, the lower arms carry most of the acceleration and braking loads, while the upper arms stop the axle housing from rotating under torque.

Because each arm controls part of the axle?s position, a single damaged arm is enough to change how the whole rear end behaves. If one side is shorter, bent or loose, the axle sits slightly skewed, and the rear wheels no longer point straight ahead.

When One BF Sedan FORCE 8 Arm Needs Replacing

It?s common for only one trailing arm to need attention. Typical reasons include:

• Off-road impact on a rock, stump or washout that bends a lower arm
• A kerb strike or pothole that damages the arm on one side
• Corrosion concentrated on the side exposed to more water, mud or road salt
• A mounting eye that has worn oval and no longer holds a bush securely
• Damage found during a roadworthy, MOT or periodic inspection
• An arm previously repaired or heated, which shouldn?t be trusted to carry load

Replacing only the damaged arm is a sound repair when the remaining arms are straight, uncorroded and have healthy bushes.

Signs of a Bent or Damaged BF Sedan FORCE 8 Trailing Arm

• The vehicle crabs or steers slightly from the rear on a straight road
• The steering wheel sits off-centre even after a front alignment
• Rear tyres wear unevenly or one rear tyre wears faster than the other
• A clunk from the rear when accelerating, braking or reversing
• Rear-end shuffle or axle tramp that wasn?t there before
• Visible bends, kinks, cracks or crushed sections in the arm
• One rear wheel sitting further forward or back in the wheel arch than the other

A bent arm can be hard to spot by eye. Measuring the distance from each rear wheel hub to a fixed point on the chassis, side to side, is a simple way to confirm whether the axle has been pulled out of square.

Replacing One Arm or a Pair

Replacing one arm is cost-effective when damage is limited to that arm. A pair makes more sense when:

• The arms on both sides show similar wear, rust or bush deterioration
• The vehicle has high kilometres and the remaining arm is likely to need replacing soon
• You want identical bush condition left and right for consistent handling
• The vehicle has been lifted or lowered and geometry needs correcting on both sides

Fitting a new arm opposite an old one with tired bushes can leave the rear end behaving differently left to right under braking and acceleration. If the opposite arm?s bushes are cracked or soft, replace those too.

Matching the Right Arm for Your BF Sedan FORCE 8

Before ordering an individual trailing arm, confirm:

• Axle: front or rear, as some 4WDs use trailing arms at both ends
• Position: upper or lower
• Side: left or right, as many arms are handed
• Vehicle variant: body style, drivetrain and model year can change the arm
• Ride height: a standard-length arm suits a vehicle at factory height, while a modified vehicle may need adjustable arms

Each listing shows these details for the arm. Our fitment guarantee means the arm you order for your BF Sedan FORCE 8 is confirmed to suit it.

Fitting an Individual Trailing Arm on Your BF Sedan FORCE 8

Fitting suits professional workshops and experienced home mechanics. As a general guide:

1. Park on level ground, chock the front wheels and raise the rear of the vehicle.
2. Support the chassis on stands and support the axle with a jack.
3. Remove only the arm being replaced, so the axle stays located by the others.
4. Clean the mounting brackets and check them for cracks, corrosion or elongated holes.
5. Fit the new arm in the correct orientation and start the bolts by hand.
6. Lower the vehicle onto its wheels and tighten the pivot bolts to specification at ride height.
7. Check that the axle sits square, then have a wheel alignment (tracking) carried out.

Tightening pivot bolts with the axle hanging pre-twists the bushes and shortens their life, so final torque should always be done at ride height. Re-check bolt torque after the first few hundred kilometres.

Inspecting the Rest of the Rear Suspension

A hit hard enough to bend one trailing arm can damage other parts too. While the arm is being replaced, inspect:

• The other trailing arms for bends or cracked bushes
• The panhard rod or locating links for damage and play
• Chassis and axle brackets for cracks, distortion or torn welds
• Shock absorbers and their mounts for bending or leaks
• Brake lines and ABS sensor leads for stretch or chafing

Catching related damage during the same repair avoids a second teardown and a second alignment.

Polyurethane Bushes and Arm Life

The bushes at each end of a trailing arm usually wear out long before the arm itself. Polyurethane bushes resist the oil, grease, ozone and weathering that break down rubber, and hold the axle more firmly under load. Nolathane has been making polyurethane suspension bushings since 1974, originally developed to replace brass bushes in hillclimb competition. The signature red bushings are made in a range of durometers (hardness grades) for each position, with outstanding abrasion resistance and high load-bearing capability for vehicles that tow, tour and work hard. The honest trade-off is slightly more road feel than soft factory rubber.

Compliance

A bent or cracked trailing arm can fail a roadworthy, MOT or periodic inspection, and replacing it restores the vehicle to a safe condition. If the vehicle has been modified, check that the arm suits its ride height and that the setup meets the vehicle standards where it?s registered, as rules vary between Australian states and in the UK and Europe. Tell your insurer about any suspension modifications.

Shop Individual Trailing Arms for Your BF Sedan FORCE 8

Find the trailing arm for your BF Sedan FORCE 8, then order online with fast shipping or have it fitted by a Nolathane reseller. Every arm is backed by Nolathane?s warranty, 60-day returns give you time if a part isn?t right, and our local support team can help you confirm the correct side and position, whether you?re repairing impact damage, replacing a worn arm or restoring an older vehicle.