A Collector’s First Year With Automotive Two Post Lifts: Install to First Service

A collector near Marion called us a couple of winters ago with six vehicles, a heated 30×50 shop, and one specific problem: he was tired of doing CV axle and half-shaft work on his own cars while flat on a creeper with the suspension loaded. He’d been reading about automotive two post lifts for months, had three model numbers written on a legal pad, and wanted somebody to tell him which spec sheet numbers actually mattered. We spent about forty minutes on the phone, then drove over with a tape measure. What follows is roughly how that first year went — the spec comparison, the install, the first real job on it, and the twelve-month service call.

Three Model Numbers on a Legal Pad

His shortlist was a 9,000 lb baseplate unit he’d seen advertised cheap, a Rotary SPOA10 asymmetric, and a Challenger 10,000 lb symmetric. All three would lift every car he owned — his heaviest was a full-size sedan under 5,000 lb, and even his project truck was well under 7,000. So capacity wasn’t the deciding factor, which surprised him. Capacity almost never is, for a collector. What decides it is arm geometry, minimum pad height, rise height, and column footprint.

The cheap 9,000 lb unit lost on two counts. Its minimum arm pad height was over five inches, which is a problem when one of your cars sits three and a half inches off the ground at the pinch weld. And its rise topped out lower than the others, meaning he’d be working with his neck bent on anything he lifted all the way. The asymmetric Rotary won on door clearance — he wanted to open doors fully to get in and out while the car was up, and asymmetric rotates the columns so the vehicle sits farther back. The Challenger symmetric would have been the pick if his fleet skewed toward long wheelbases and nose-heavy trucks. Between the last two it came down to preference and what we could get delivered before the ground froze. He took the asymmetric.

What the Spec Sheet Actually Told Us About His Shop

Spec sheets are worth reading line by line, because they describe the building as much as the machine. Overall height on the overhead model he wanted was a shade over 12 feet. His shop had 12-foot sidewalls with a scissor truss, and the lowest obstruction over the intended bay was a run of conduit at 11 feet 9 inches. That’s the kind of three-inch problem that ends a purchase. We moved the lift bay eight feet toward the center of the building where clear height was 13 feet 2 inches, and the overhead model fit with room to spare. Had we not moved it, he’d have been buying a baseplate unit and stepping over a floor channel forever.

The other spec that mattered was bay width. The manual called for a minimum overall width plus working clearance, and his original plan put a column three feet from a workbench. On paper that met the minimum. In practice, three feet is not enough room to pull a half-shaft out sideways or swing a long pry bar. We shifted the layout to give him four and a half feet on the bench side and about six on the open side. Free clearance is the cheapest thing you’ll ever add to a shop. Concrete checked out at just over five inches of what looked like a good pour, no in-floor heat, no cracking near the anchor locations, so no cut-and-pour work was needed.

Install Day

Delivery came on a flatbed and the columns went off with a forklift he borrowed from a neighbor — worth arranging in advance, because a two-post crate is heavy and awkward and there’s no elegant way to move it by hand. Our crew set both columns, shimmed and plumbed them, ran the hydraulic line and the equalizing cables, drilled anchors, torqued to the manufacturer’s spec with a calibrated wrench, and wired the power unit to a dedicated 30-amp 220V circuit his electrician had run the week before. Bleeding the system and cycling it through full travel took another hour. Then we ran it loaded, checked that both carriages rose evenly, and confirmed the safety locks engaged and released cleanly at every position.

The part he remembered most was the walkthrough. We spent close to an hour on lock operation, the manual lock release, arm restraint engagement, how to read the pinch weld and frame lift points on each of his cars, and what a daily pre-use check looks like — cables, hoses, arm pins, anchor bolts, oil level. He wrote it down. A year later he still had the notes taped inside the power unit cabinet door, which is more than most professional shops manage. Owners of automotive two post lifts who understand their own equipment have far fewer problems, and we’d rather train once than troubleshoot three times.

The First Real Job: A CV Axle That Wouldn’t Come Out

His first serious use was a torn inner CV boot on a front-drive coupe that had been leaking grease onto the garage floor all summer. On a two-post the wheels hang free, which is exactly what you want for half-shaft work — the suspension drops into full extension, the control arm swings down, and you gain the angle you need to pop the inner joint out of the transmission without fighting a loaded strut. He’d tried the same job on jack stands two years earlier and given up.

It still wasn’t easy. The outer joint splines were rusted into the hub and took a puller and heat. But the difference was that he could stand upright under the car, work at chest height, and walk around to the other side without repositioning anything. He called us afterward mostly to say he understood why we’d pushed him toward rise height on the spec comparison. At full lift he had over six feet of clearance under the rockers, which meant no stooping across a three-hour job. He also learned the hard way that a torque wrench on an axle nut needs the wheels stopped, so he did the final torque after lowering onto the ground. That’s normal — with automotive two post lifts you do final fastener torque with the vehicle down and the wheels loaded whenever the spec calls for it.

Storage, Rotation, and What a Two-Post Won’t Do

Six vehicles in a 30×50 shop means constant shuffling, and a collector’s instinct is to use the lift for storage. We’re honest about this: a two-post is not a storage lift. It holds the vehicle by the frame or pinch welds, the arms are load-bearing under a specific geometry, and it isn’t designed to sit loaded for months. It also blocks its own bay — you can’t park under a two-post the way you can under a four-post, because the arms and columns are in the way. If long-term stacked storage is a goal, that’s a four-post conversation, and we sell those too.

What the two-post gave him instead was speed on the work he actually does: brakes, exhaust, fluid changes, suspension bushings, CV and half-shaft jobs, rust inspection before winter. Over the first year he estimated he’d done more maintenance than in the previous three combined, because the barrier dropped from “clear the floor, find the jack, block the wheels, hope” to “pull it in and raise it.” That’s the real return. He did add low-profile arm adapters in month four for his lowest car, and he wished he’d ordered them with the lift instead of paying freight twice. We tell everybody that and about half listen.

The Twelve-Month Service Call

We came back at the one-year mark for an inspection, which is what ANSI/ALI guidance recommends annually and what we recommend regardless of how light the use has been. We checked anchor bolt torque — two had relaxed slightly, which is normal in the first year and is exactly why you re-torque. We inspected equalizing cables end to end for broken strands, frays, and proper tension; adjusted them to bring the carriages back into level within tolerance; inspected hydraulic hose and fittings for weeping; checked oil level and condition in the power unit reservoir; cycled every lock position; and inspected arm pins, restraint gears, and pad wear.

Nothing was wrong. One rubber pad was chewed up from a rocker panel and got replaced out of the van. That’s a typical year-one inspection on lightly used equipment, and it takes about ninety minutes. Skipping it is the single most common mistake we see with privately owned automotive two post lifts — a commercial shop has an insurer asking questions, a collector has nobody but himself. Cables and anchors are the two items where deferred maintenance turns into a real hazard, and both are cheap to inspect and cheap to fix early. We stock cables, locks, pads, cylinders, and power units for every major brand, so a failed part doesn’t mean a month of downtime. If you’re a year or more into ownership and haven’t had eyes on the equipment, call us. More reading: our pieces on two post lift cable replacement, the annual lift inspection checklist, and four-post vs two-post for a home garage.