How to Use a Trolley Jack and Axle Stands Safely at Home

A family hatchback weighs around 1,200 kilograms. The scissor jack in its boot is designed to hold one corner of that for ten minutes while you swap a wheel at the roadside, and nothing more. Yet every year people slide under cars held up by exactly that jack. If you plan to do any work underneath, learning to use a trolley jack and axle stands properly is the first skill to get right, before oil changes, before brakes, before anything.

I have lifted cars on driveways, in rented garages and on a gravel lay-by I would not recommend. The method below is the one I teach anyone who borrows my tools. It costs very little extra time and it removes most of the ways a lift goes wrong.

Choosing a Trolley Jack and Axle Stands That Match Your Car

Capacity ratings mislead people. A 2 tonne trolley jack sounds like overkill for a 1.2 tonne car, but you are never lifting the whole car, and the extra rating buys a sturdier frame, a wider saddle and a smoother pump. For most cars and small SUVs, a 2 to 3 tonne jack is the sensible range.

Lift height matters more than capacity. A low profile jack with a minimum height around 85 to 100 mm slides under lowered hatchbacks, while a maximum lift of at least 450 mm is needed to get a wheel clear on taller vehicles. Check both figures against your car before buying.

Buy stands rated well above the corner load and always in pairs. Pin type stands, where a steel pin passes through the column, are slower to adjust than ratchet stands but offer a second line of security that I value.

Find the Correct Jacking and Support Points

Most lifting mistakes start with the wrong point. Your handbook shows the manufacturer's jacking points, usually marked by small notches or arrows on the sill. These are reinforced for the roadside jack and fine for a trolley jack with a grooved pad.

The catch is that you then need somewhere else to put the axle stand. Common options:

• A central front jacking point on the subframe, which lets you raise both front wheels at once and place stands on the sill points.
• A rear towing eye area or rear axle beam, depending on the design and what your handbook allows.
• Reinforced subframe mounts close to the sills.

Never jack on the sump, the gearbox casing, a floor pan or a suspension arm that is not designed for it. A thin floor pan folds quietly, and you only find out when the car drops a few centimetres.

The Lift, Step by Step

This is the sequence I follow every single time, whatever the job.

1. Park on flat, hard ground. Concrete is ideal; a soft tarmac drive on a hot day is not. If your surface is uneven, sort that first, as explained in getting the home mechanic's driveway right.
2. Handbrake on, first gear or Park selected, engine off.
3. Chock the wheels at the opposite end, front and back of the tyre.
4. If removing a wheel, crack the nuts loose by a quarter turn while the tyre is still on the ground.
5. Position the jack saddle squarely under the point, with the pad in place, and pump slowly until it just makes contact.
6. Raise the car only as high as you need, plus a little clearance for the stand.
7. Place the stand, set its height, and lower the jack until the car's weight sits on the stand.
8. Leave the jack in place, slightly below the car, as a backup.

The Shake Test Most Guides Skip

Once the car sits on its stands, push firmly on the body at the corner you lifted. Then push from the side. The car should feel solid, move as a unit with its suspension, and settle back without any click, creak or lean. If a stand rocks, shifts or the car moves sideways, lift it back up and reset.

This takes about thirty seconds. It is the single best check you can do before putting any part of your body under the car, and it catches stands placed on a seam, a crumb of gravel under a base or a pad slipping off a sill weld.

Common Advice That Gets Lifting Wrong

A few tips repeat endlessly on forums, and I disagree with them.

Bricks and wooden blocks as supports

People say a stack of bricks will do. Bricks are strong when loaded evenly from above and crack when loaded on a corner or edge, which is exactly what happens under a car. Hardwood cribbing built for the purpose is a different matter, but a garden brick is not a support.

The spare wheel under the sill

Sliding the spare wheel under the car as a backup is better than nothing, but it gives a false sense of safety. If a stand fails, a wheel lying flat may stop the car crushing you, or it may not leave enough room for your chest. Treat it as an extra layer, never as a reason to skip stands.

Jack plus one stand is enough

Some people put one stand under a corner and leave the jack holding the rest. Hydraulic jacks can creep down over minutes as seals leak. Every corner you raise should rest on its own stand.

Lowering, Storage and Looking After the Kit

To come down, pump the jack until it takes the weight off the stands, remove the stands, check nothing is underneath, then open the release valve slowly. A sudden drop jolts the suspension and can bounce a jack out of position. Torque the wheel nuts once the car is back on the ground; our guide on using a torque wrench correctly covers the figures.

Store the jack with the saddle fully lowered to protect the ram. Check the oil level once a year and look for weeping fluid around the pump. Inspect stands for bent bases, cracked welds or worn ratchet teeth. A stand that has been dropped hard or overloaded should go in the scrap pile. If you are still building a kit, see which garage tools are worth buying first.

FAQ

Can I use the scissor jack from my boot with axle stands?

You can use it to lift a corner just enough to place a stand, but it is unstable and slow. A trolley jack is safer for regular work, and the scissor jack is best left for roadside wheel changes.

How high should I set the axle stands?

As low as the job allows. Lower stands are more stable and reduce the drop if anything slips. For most oil changes and brake jobs, the second or third notch is plenty.

Can I work under a car on a slight slope?

Avoid it. Even a gentle gradient puts sideways force on stands and makes them more likely to tip. If a slope is unavoidable, park facing uphill, chock heavily and keep the work brief.

The Practical Takeaway

Buy a 2 to 3 tonne low entry trolley jack, a pair of pin locking stands and solid chocks, roughly 100 to 230 pounds in total. Lift only on reinforced points, put every raised corner on a stand, leave the jack as a backup and do the shake test before you slide under. Those habits matter more than any single tool in your garage.