Race-Car Jacking: Plan the Support Before the Wheels Come Off

Hero photograph: A Nissan race car in the garage at Circuit of the Americas on May 18, 2013. Archive context photograph; the support arrangement cannot be certified from this view. Photo: Steve / mrlaugh / Wikimedia Commons, “20130518-IMG 2436 (8756187821).jpg”, CC BY-SA 2.0. Wikimedia 1280-pixel rendition; no crop or further edits.

A wheel change becomes a safety problem when the crew has decided where to put the jack but has not decided where the car will rest. Work out both positions before lifting. Include the route for placing and removing the stands without putting anyone beneath an unsupported car.

This is a planning check for paddock and workshop work with a trolley jack and axle stands. Follow the exact vehicle and equipment instructions. Built-in air jacks, race-car trestles and workshop lifts have their own support procedures. If a modified chassis has no documented lifting arrangement, get that settled with its constructor or a qualified specialist before the next repair.

Start with the ground and the car’s support points

The UK Health and Safety Executive’s vehicle-repair guidance calls for hard, level ground, correctly located lifting and support points, suitable equipment capacity and secure chocking of the wheels left on the ground. It warns against relying on a jack alone. If the paddock surface is unsuitable, move the work to a suitable place before raising the car.

Find the vehicle’s specified jacking points and stand locations in its service information. Check their condition and access before loading them. A repaired sill, added splitter or altered underbody can make a familiar approach unusable. Do not choose a nearby panel, suspension part or bracket simply because the jack fits beneath it.

For a competition build, keep a simple crew reference showing the verified lift and support locations, the required equipment and any access panels that must come off first. Have the constructor confirm changes to that arrangement after structural repairs or modifications.

Read the rating and the permitted arrangement

Identify the exact stands, including whether the stated capacity applies to one stand or a pair. For example, Sealey’s AS3Y specification separately lists 3 tonnes per stand and 6 tonnes per pair. That example explains why the wording matters; it is not a universal way to read every stand’s label or a recommendation for your car.

The AS3-series instructions also warn that load is not necessarily shared equally between support points. Follow the manufacturer’s selection requirements rather than dividing the car’s total weight by the number of stands.

The manual permits only one pair at a time. A whole-car lift therefore needs equipment and a documented arrangement intended for that job. Confirm unclear ratings or applications with the manufacturer before use.

Inspect the kit, including the model number

Check the stands and their locking parts before every use. Sealey’s manual calls for checking welds, missing or damaged parts and locking-pin condition, and removing damaged stands from service. Keep each stand’s original components together. Install the correct pin completely as instructed. HSE also explicitly rejects substitute bolts or screwdrivers.

The SUNEX 6603AJ floor-jack manual similarly requires checks for leaks, damaged parts and loose or missing hardware. Abnormal operation needs attention before another lift. Keep the labels readable so the next person can identify the equipment and its limits.

Include a recall check when taking over used equipment or auditing the trailer. Harbor Freight’s current recall page still links its Pittsburgh Automotive jack-stand notice covering item numbers 56371, 56373, 61196 and 61197. It instructs owners to stop using those stands because affected units can drop under load. Check the item number against the official notice; color or an undamaged appearance cannot establish whether a stand is affected. This is an existing recall, not a newly announced October 2026 action.

Make the transfer onto the stands deliberate

Use the vehicle’s specified immobilization procedure and chock the wheels that remain on the ground. Bahco’s BH1A jack instructions prohibit anyone remaining in or on the vehicle, or getting beneath it, while it is being jacked or supported only by a jack. One person should direct the operation so nobody starts removing a wheel while someone else is still positioning support equipment.

SUNEX’s manual requires an unobstructed surface so its trolley jack can reposition as the car rises or lowers. It prohibits improvised risers between the saddle and the load, and permits replacement saddle adapters only when approved or supplied by the jack manufacturer. Low bodywork calls for compatible equipment, not a stack of loose spacers.

Engage the stands’ locks before loading them. Lower carefully onto the intended saddle contact areas and confirm that the stands are upright and the supported car is stable. Keep your body clear while lifting or placing and removing stands. If the contact or stability is wrong, stop and correct the setup using the equipment’s procedure before work begins.

At SCCA Time Trials, Rules of the Paddock require stands whenever a person is beneath any part of a raised vehicle. The same rules prohibit running the car in gear with its driven wheels off the ground. Check your event’s rules and supplementary instructions before treating the paddock as a workshop.

Reconsider the support when the repair changes

A planned wheel swap can turn into a much larger job. Removing an engine or gearbox, or applying heavy force through a tool, changes the conditions the support arrangement must handle. HSE’s HSG261 guidance, paragraph 198, explicitly addressing two-post lifts, tells operators to account for major-component removal and tool forces when considering stability.

The practical paddock lesson is to stop when the job expands and confirm a suitable method for the new work. Do not assume the original wheel-change setup remains suitable for drivetrain removal. Sealey also warns against pushing or twisting a vehicle on its stands.

Agree on the lowering call before anyone starts

Finish the repair checks, clear tools and loose parts, and account for everyone around the car before lowering. Follow the equipment’s removal sequence: unload the stands with the jack, remove them from the work area without crawling underneath, then lower slowly with everyone clear.

Before packing up, note any damaged support point, questionable stand or jack fault and keep that equipment out of service until resolved. The next session’s departure time should never decide whether an uncertain lifting setup gets used again.

Educational preparation guidance. The exact vehicle, lifting-equipment instructions and applicable event rules govern. Photographs are archival equipment and garage views, not installation approvals. Primary sources checked for this October 2026 article.