How to Inspect a Used Two Post Lift Before You Buy

If you’re about to hand over cash for someone else’s old equipment, you need to inspect a used two post lift the right way before it ever gets loaded on a trailer. We’re Auto Lift Services, an Iowa-based installer and parts distributor, and we get calls every month from shops and home garage owners who bought a lift sight-unseen and then found out the hard way it needed a column, a full cable set, or worse. A careful inspection takes maybe forty-five minutes. Skipping it can cost you thousands after delivery, and a lift with hidden structural damage is a genuine safety risk to anyone standing under it.

Why You Should Inspect a Used Two Post Lift Like a Buyer, Not a Fan

Sellers almost always describe their lift as “barely used” or “works great.” That might be true, but it’s their word, not your evidence. When you inspect a used two post lift, treat it the way you’d treat a used car with a suspiciously clean CarFax — verify everything yourself instead of trusting the listing photos. Ask the seller directly why they’re selling. Shop closures, upgrades to higher capacity, and simple downsizing are normal reasons. Vague answers or reluctance to let you run the lift under load before purchase are red flags worth taking seriously.

We’ve walked into deals where the seller genuinely didn’t know their lift had a cracked weld or a worn anchor bolt pattern, because they never looked past the surface rust. That’s not dishonesty, just inexperience. Your job as the buyer is to bring a flashlight, a tape measure, and a checklist, and to actually crawl underneath and around the unit rather than standing back and looking at the paint job. Ten minutes of careful looking beats a lifetime of wondering whether the lift you bought is safe to stand a customer’s car on.

Check the Columns, Base Plates, and Anchors First

Start at the ground. Columns should sit flat and true with no visible twisting, and the base plates should show clean anchor bolt holes without elongation or cracking in the concrete around them (if it’s still bolted down where you’re viewing it). Elongated anchor holes usually mean the lift has been rocking under load for a while, which stresses the whole structure. Look at the column-to-base weld seams closely — any rust bleeding out of a seam, or a seam that looks like it’s been reinforced or re-welded, deserves a hard pass or at minimum a big price adjustment and a mechanic’s opinion.

Next, check for column straightness by sighting up each post from the base. A column that’s visibly bent or bowed has probably taken an impact from a vehicle or a forklift, and that kind of damage doesn’t always show up until the lift is under a full load again. Also look at the carriage — the part that rides up and down inside the column — for gouges, flat spots, or excessive play side to side. Rollers and slide blocks wear out over years of use, and replacing them on an older column isn’t always cost effective compared to just buying new.

Test the Arms, Pads, and Locking Mechanism

Arms take a beating on any two post lift, especially at shops that service a mix of vehicle sizes daily. Extend and retract every arm section fully and check for smooth movement without grinding, binding, or excessive slop in the pins. Worn arm pins and bushings are a normal wear item and not a dealbreaker on their own, but they do factor into your offer. Check that all four lift pads still adjust and lock properly, and that the pad screws aren’t stripped or rounded off from years of use with the wrong tools.

The safety lock mechanism matters more than almost anything else on the lift. Run the arms up and down a few times and confirm the mechanical locks engage cleanly at each interval with a solid click, not a soft catch or a delayed grab. If the seller won’t let you cycle the lift under an actual vehicle, ask them to run it up and down empty multiple times while you watch and listen from underneath the columns for grinding or hesitation. A lift that hesitates on the locks is not one you want to inspect a used two post lift and then walk away satisfied with — that’s a repair item before it ever goes back into service.

Inspect Cables, Cylinders, and the Hydraulic System

Cables and hydraulics are where deferred maintenance hides best. Look at every visible cable for fraying, rust, kinking, or uneven strand wear, and check that cables are seated correctly in their sheaves rather than riding up on the edge. Uneven cable tension side to side is common on lifts that haven’t been serviced regularly, and it’s a fixable issue, but it tells you the previous owner wasn’t doing routine maintenance — which raises questions about everything else on the lift too.

Check the power unit and cylinder for leaks, weeping seals, or fluid pooled underneath. A little residual oil film is normal on an older unit; active dripping is not. Ask when the hydraulic fluid was last changed and whether the filter has ever been serviced. If you can, run the lift through a full cycle and listen to the pump motor — it should sound consistent, not straining or cutting in and out. These are the exact components we sell replacements for constantly, so we know firsthand which symptoms mean a quick fix and which mean a bigger bill down the road.

Verify the Data Plate, ALI Certification, and Documentation

Every legitimate lift should have a manufacturer data plate riveted or stamped somewhere on the structure, listing model number, serial number, capacity, and manufacture date. If that plate is missing, painted over, or unreadable, that’s a serious concern — it makes the lift harder to insure, harder to service with correct parts, and impossible to verify against any recall or certification history. Photograph the data plate and run the serial number by the manufacturer or a distributor like us before you finalize anything.

Ask if the lift ever carried ALI (Automotive Lift Institute) certification and whether the seller has any service records, inspection reports, or the original installation paperwork. A lift with a documented service history is worth more and carries far less risk than one with a total blank slate. If you’re weighing this purchase against buying new, our used vs new two post lift comparison lays out the tradeoffs plainly, and our used two post lift values guide can help you figure out if the asking price is fair once you’ve documented everything you found.

Confirm Capacity, Model Fit, and Your Ceiling Height

Before you get emotionally attached to a good-looking used lift, confirm the rated capacity actually matches the vehicles you plan to service. A lift rated for lighter duty won’t be legal or safe for heavier trucks and vans, no matter how solid it looks mechanically. Cross-reference the model number on the data plate against the manufacturer’s published specs rather than trusting the seller’s memory of what it can lift.

Also measure your shop’s ceiling height and door clearances against the lift’s fully extended height and column footprint before you agree to buy. We’ve had customers purchase a great used lift only to discover it’s four inches too tall for their bay, which turns a good deal into an expensive storage problem. When you inspect a used two post lift for capacity and fit, bring your actual ceiling measurements with you, not a rough guess from memory.

Factor In Installation, Freight, and Recertification Costs

The purchase price is rarely the whole story. Moving a two post lift requires proper rigging, a flatbed or enclosed trailer, and either a forklift or crane at both ends — do not attempt this with a pickup and a ramp. Get a freight quote before you commit to the purchase so it doesn’t become a surprise later. Then factor in professional installation, which should include anchoring to code, full hydraulic and cable adjustment, and a safety inspection before the lift ever supports a vehicle.

We install used lifts across Iowa regularly, and part of that service includes flagging anything we find during setup that wasn’t obvious during the sale — worn anchors, a cable that needs replacing, a cylinder that’s due for a rebuild. Budgeting for a post-installation tune-up on any used unit is smart, even one that looked great during your walkthrough. If you decide the numbers don’t work after all this, our guide on selling a used two post lift covers the flip side of this same process.