Where Do You Put The Jack Under The Car

Knowing where do you put the jack under the car is the single most important step for safe vehicle lifting. Safely lifting your vehicle begins with identifying the manufacturer’s recommended jack points along the vehicle’s frame. Using the wrong spot can cause serious damage to your car’s body or mechanical parts, and it can lead to a dangerous collapse. This guide will show you exactly how to find these critical points on any vehicle.

We will cover the different types of jacks, how to locate jack points on sedans, trucks, and SUVs, and provide a clear step-by-step process. You’ll also learn where you should never place a jack and crucial safety tips to follow every time.

The primary jack points are specific reinforced sections of the vehicle’s frame or unibody structure designed to handle the concentrated weight. They are not random spots on the floor pan or suspension components. Placing the jack correctly protects both you and your vehicle from harm.

Understanding Vehicle Jack Points

Modern cars use two main construction methods: body-on-frame and unibody. Knowing which your vehicle has helps you understand the jack points.

Body-on-frame vehicles, like many trucks and older SUVs, have a heavy steel chassis. The jack points are typically on the solid frame rails running along the vehicle’s length. Unibody vehicles, which include most modern sedans, hatchbacks, and crossovers, integrate the frame and body. Their jack points are reinforced metal pads or seams along the vehicle’s sides.

Common Types of Jack Points

Side Sill Jack Points: These are the most common on unibody cars. Look for small notches or reinforced sections just behind the front wheels and just ahead of the rear wheels along the bottom of the rocker panel.
Frame Rail Jack Points: Found on trucks and body-on-frame SUVs. These are strong, boxed sections of the frame, often accessible behind the front wheels or before the rear wheels.
Central Jack Points: Some vehicles have a central point at the front (behind the engine) and rear (under the differential or a crossmember) for use with a floor jack to lift two wheels at once.
Differential Housing: For solid rear axle vehicles, the center of the differential pumpkin is a safe jack point for lifting both rear wheels. Never jack on a independent rear suspension differential cover.

How To Locate Your Vehicle’s Specific Jack Points

The absolute best resource is your vehicle’s owner’s manual. It will have diagrams showing the exact approved locations. If you don’t have the manual, you can usually find it online by searching your car’s make, model, and year.

If you cannot access the manual, perform a visual inspection. Look for these tell-tale signs:

Notches or cut-outs in the plastic rocker panel trim.
Small, hard rubber or metal pads protruding slightly from the underbody.
Reinforced seams with thicker metal, often with paint or coating worn off from previous lifts.
On trucks, look for the solid, thick frame rails. Avoid any brake lines, fuel lines, or wiring harnesses clipped to the frame.

Step-By-Step Guide To Jacking Up Your Car

Follow these steps carefully to ensure a safe and successful lift every single time.

Step 1: Prepare Your Vehicle and Workspace

Park on a firm, level, and stable surface like concrete or asphalt. Never jack on dirt, gravel, or an incline.
Turn off the engine, engage the parking brake firmly, and place wheel chocks against the wheels that will remain on the ground. For example, chock the front wheels if lifting the rear.
If you are changing a tire, loosen the lug nuts on the wheel you will remove while the car is still on the ground. Do not remove them completely yet.
Gather your tools: a jack, jack stands (crucial for safety), and if possible, a piece of wood to place under the jack for added stability and to protect the vehicle.

Step 2: Position the Jack Correctly

Consult your manual or visually identify the correct jack point for the wheel you need to lift.
Place the jack so its lifting pad or saddle contacts the center of the reinforced jack point. For side sill points, ensure the jack is perpendicular to the vehicle to prevent slipping.
If using a floor jack, roll it into position so the handle has room to pump without obstruction.
Double-check that the jack is not contacting plastic body panels, exhaust pipes, brake lines, or the vehicle’s floor pan.

Step 3: Lift the Vehicle and Secure It

Begin lifting slowly and steadily. Pause frequently to ensure the jack is remaining stable and the contact point is not deforming or slipping.
Lift only until the tire clears the ground by about one to two inches. Do not lift higher than necessary, as this makes the vehicle less stable.
Once lifted, immediately place a jack stand under a secure, load-bearing point near the jack. This is often a designated stand point on the frame or subframe. Never rely solely on the jack to hold the vehicle, especially if you are going underneath it.
Gently lower the vehicle onto the jack stand by slowly releasing the jack’s pressure. The stand should now bear the full weight. Give the car a slight shake to test stability before proceeding with your work.

Types Of Jacks And Their Best Use

Different jacks are suited for different tasks. Using the right tool makes the job safer and easier.

Scissor Jacks (The Common Car Jack)

These are the compact jacks included with most vehicles for emergency tire changes. They have a low weight capacity and are slow to operate. Only use them on firm, level ground and always for their intended purpose: lifting one corner of the car just enough to change a tire. Never get under a vehicle supported only by a scissor jack.

Hydraulic Floor Jacks

These are the preferred tool for garage work. They have a higher weight capacity, roll easily, and lift quickly with a pump handle. Their long reach and low profile allow them to access central jack points. Always use jack stands in conjunction with a floor jack.

Bottle Jacks

Bottle jacks are compact but powerful, making them popular for trucks and SUVs. They have a smaller base, so stability is critical. Ensure they are on a perfectly level surface and consider using a wide base adapter. Like all jacks, they are not a substitute for jack stands.

Where You Should Never Place A Jack

Knowing where not to jack is just as important. These areas can crumple, crack, or cause the jack to slip.

The Oil Pan or Engine: This will almost certainly crack the oil pan, leading to major engine damage.
Transmission Pan: Similarly, this is fragile and easily damaged.
Exhaust Components: The exhaust pipes and muffler can crush easily and are not structural.
Suspension Components: Control arms, sway bars, and tie rods are not designed for vertical lifting force and can bend.
The Vehicle’s Floor Pan: This thin sheet metal will buckle and dent under the weight of the car.
Any Plastic Bodywork or Splash Guards: These will shatter or deform immediately.
Differential on Independent Suspension: The housing may not be strong enough and could leak.

Special Considerations For Different Vehicles

Different vehicle types have unique characteristics to keep in mind.

Lifting a Truck or SUV

These heavier vehicles require a jack with a sufficient weight rating. Frame rails are the primary points. For a floor jack, look for the front crossmember or the solid rear axle differential. Always use robust jack stands rated for the vehicle’s weight.

Lifting a Sedan or Hatchback

Focus on the side sill jack points. The plastic rocker panels often have arrows or markings indicating where to place the jack. Be gentle, as the unibody structure is more suseptible to damage from incorrect placement than a truck frame.

Lifting a Car with Side Skirts or Aero Kits

Some performance or luxury cars have low body kits that hide the jack points. The owner’s manual will specify how to access them, which may involve a special adapter or a specific jack pad that slots into a hole in the skirt.

Essential Safety Tips And Best Practices

Safety cannot be overstated. A mistake here can have severe consequences.

Always use jack stands. A jack is a lifting device, not a support device. The only exception is during the brief moment of a tire change when you are not under the vehicle.
Inspect your jack and jack stands before each use. Look for hydraulic leaks, cracks, or damaged welds.
Never place any part of your body under a vehicle supported only by a jack.
Lift one end of the vehicle at a time, not the entire side, unless you have multiple professional-grade stands and precise knowledge of the central lift points.
If something doesn’t look or feel right during lifting, stop immediately, lower the vehicle, and reassess.

Frequently Asked Questions (FAQ)

Can I jack up my car from the control arm?

No, you should not jack up your car from the control arm. While it may seem sturdy, it is a suspension component designed for specific forces. Jacking on it can bend it, misalign your suspension, or cause the jack to slip off.

Where is the jack point on the front of a car?

The front jack point is typically a reinforced central crossmember located behind the engine. Some cars also have specific side sill points just behind the front wheels. Always check your manual, as some vehicles require a specific adapter for the front central point.

Is it safe to use the differential as a jack point?

It is only safe to use the differential as a jack point if your vehicle has a solid rear axle, common in trucks and rear-wheel-drive cars. The center of the differential housing is strong. For cars with independent rear suspension, the differential is not designed for this and you should use the manufacturer’s designated points.

How many jack stands do I need?

For most DIY work, you need at least two jack stands. If you are lifting the entire front or rear end, you will use two stands under the appropriate frame or subframe points. To lift the entire car, you would need four high-quality jack stands and a very precise, level lifting procedure.

What should I do if I can’t find the jack points?

If you cannot find the jack points, stop. Do not guess. Refer to your vehicle’s owner’s manual, search online for a diagram specific to your make and model, or consult a professional mechanic. Using an incorrect point risks significant damage and personal injury.

Correctly identifying where to place your jack is a fundamental skill for any car owner. It ensures your safety and prevents costly repairs to your vehicle’s undercarriage. By always consulting your owner’s manual, using the right equipment, and following the step-by-step safety procedures outlined here, you can confidently and safely lift your car for maintenance or emergencies. Remember, taking an extra minute to find the right spot is always worth it.