Used 2 Post Lifts: What to Check Before You Buy

If you’re shopping Craigslist, Facebook Marketplace, or an auction house for a two-post hoist, you need a real checklist for used 2 post lifts what to check before money changes hands, because a lift that looks fine sitting on a trailer can hide problems that cost more than buying new. We’re Auto Lift Services, an Iowa-based installer and parts supplier out of Ames, and we get calls every month from folks who bought a used two-post online, hauled it home, and then found out it’s missing a critical part or the columns are bent. Before you buy, run through the same inspection points our techs use when we’re asked to evaluate a used lift for a customer.

Start With the Columns and Base Plates

The single biggest thing on any used 2 post lifts what to check list is the condition of the columns. Stand back and look at both columns from the side — they should be plumb and straight, with no visible bowing or twist. A column that’s been hit by a vehicle or forklift can look fine from a distance but be out of square, which throws off the carriage travel and puts uneven stress on the cables or hydraulic system depending on the design. Run your hand down the inside track where the carriage rides and feel for gouges, rust pitting, or flat spots.

Next, check the base plates and anchor bolt holes. If the lift was installed and removed before, the anchor holes will already be there — look for elongation or cracking around them, which suggests the lift was rocking under load at some point. Ask the seller for the floor thickness and rebar spec from the original install if they have it, since that tells you whether the lift was even anchored correctly the first time. A used lift that was improperly anchored for years can have stress fatigue in the base that you simply can’t see without a thorough inspection.

Inspect Cables, Chains, or Hydraulic Lines

Cable-style two-post lifts rely on synchronized cables to keep both columns rising evenly, and this is where a lot of used units fall apart fast. Look for fraying, kinking, or rust on every visible run of cable, and check that both sides of each pair are the same diameter — mismatched replacement cable is a red flag that someone patched a problem instead of fixing it. On chain-driven or hydraulic-cylinder equalized lifts, check for oil weeping at the cylinder seals and inspect chain links for stretch or corrosion.

This is one of the areas where used 2 post lifts what to check really matters, because cable and equalization systems are safety-critical, not cosmetic. If the seller can’t tell you when the cables were last replaced or inspected, budget for new cables and equalizer valves as part of your purchase price — factor that into what you’re willing to pay. We stock replacement cables for most major brands, and a full cable swap is inexpensive insurance compared to what happens if one fails under a loaded vehicle.

Test the Safety Locks and Lowering Mechanism

Every properly built two-post lift has a mechanical safety lock system that engages automatically as the carriages rise, usually a ratchet bar and pawl arrangement that catches if hydraulic pressure is lost. Ask the seller to run the lift up and down, and watch the locks engage and release cleanly on both sides at the same height. If one side locks a step ahead of the other, the equalization system is off and needs adjustment before the lift ever goes into service.

Also test the lowering handle or release cable — it should require deliberate pressure to release the locks, not release accidentally under vibration. A lift with a sloppy or unresponsive release mechanism is either worn out or has been rigged, and either one is a dealbreaker unless you’re planning a full lock rebuild. We’ve walked away from evaluating used lifts for customers specifically because the lock system had been bypassed by a previous owner trying to make an old lift pass a quick visual check.

Check the Hydraulic Power Unit and Motor

The power unit is the heart of the lift, and it’s often the most neglected part on used equipment. Look at the reservoir fluid level and color — dark, milky, or metallic-looking hydraulic fluid suggests water intrusion or internal wear. Listen to the motor run; it should be smooth without excessive whine, and the pump should build pressure and lift a load without hesitation or noticeable slow-down partway up.

Check all hose fittings and the cylinder itself for leaks, and ask how old the motor is — replacement power units aren’t cheap, and a tired one is a real negotiating point. If you’re weighing a used unit against a new one, our breakdown on used versus new two-post lifts walks through the total cost picture in more detail, including when a rebuild makes more financial sense than buying used at all.

Verify Arms, Pads, and Adjusting Screws

Arm condition gets overlooked because it’s easy to forget arms are structural, load-bearing parts. Extend each arm fully and check for excessive play at the pivot pins, and look at the arm restraint pins or locks that keep the arm from swinging out under load. Worn pivot bushings mean the arm can shift during a lift, which is dangerous with an unbalanced vehicle on the pads.

Check the adjustable pad screws for stripped threads and make sure each pad still turns freely — rust-frozen pads are common on used lifts stored outdoors. If pads are missing entirely or badly worn down, that’s a minor and cheap fix, but combined with worn arm pins it tells you the whole lift wasn’t maintained. This is a good moment to reference our used car lifts what to check guide, since arm and pad wear patterns apply across lift styles, not just two-post units.

Ask About Certification, Age, and Documentation

A legitimate used lift should come with some paper trail — an ALI certification sticker, an owner’s manual, or at minimum a model and serial number you can trace with the manufacturer. Lifts older than 15-20 years are harder to get parts for and may not meet current safety standards even if they run fine, so age matters as much as condition when you’re deciding what to check.

If the seller has zero documentation and can’t tell you the brand or model with confidence, treat that as a warning sign rather than a bargain. Our article on used versus new two-post lifts covers how to weigh missing documentation against the discount you’re being offered, and it’s worth a read before you commit. When in doubt on any of these points, we’re happy to talk through photos or specs with you over the phone.

Plan the Move, Install, and Inspection Cost

Even a used lift in great shape isn’t free to put into service. Moving a two-post unit requires proper rigging and a flatbed or equipment trailer, and setting the columns level and anchored to spec takes experience most DIYers don’t have. Factor moving and reinstallation into your total budget before you get excited about a low sticker price on the lift itself.

We install lifts across Iowa and can also do a pre-purchase inspection if the unit is within reasonable driving distance, which takes the guesswork out of used 2 post lifts what to check entirely. If you’re cross-shopping a four-post instead, our guide on used versus new 4-post lifts covers similar ground for that style. Either way, get a second set of eyes on it before you hand over cash — it’s the cheapest insurance you’ll buy in this whole process.

Related: used vs new 4 post lifts · used car lifts what to check · used versus new two post lifts