Power steering conversions occupy a strange corner of the aftermarket. Half the job is straightforward parts swapping. The other half is judgment calls about geometry, box ratio, pump output, and how all of it fits an engine bay that was never designed for hoses and a reservoir. The best kits do more than reduce steering effort, they correct slop, clarify on-center feel, and make the car easier to live with on a hot day in traffic. The worst ones fix one problem and introduce two more, like exhaust interference or weird return-to-center.
I have installed, rebuilt, or tuned power steering on everything from F-body track toys to square-body work trucks and a 1970s British oddball with more character than caster. What follows blends those shop-floor scars with the patterns I hear from owners who live with these kits for years, not weeks. The focus is on conversion kits that take a manual vehicle to assisted steering, plus a few steering box conversion kit options for classics that need a better gear. Where relevant, I’ll point to specific traits and recurring owner feedback rather than hype.
What real users mean by better steering
When an owner says a power steering conversion kit transformed the car, they usually mean three things. First, lower effort at low speed without losing road feel at highway pace. Second, a consistent on-center zone where the wheel naturally recenters after a turn. Third, no new headaches, such as pump whine, belt squeal, or oil spots on the driveway.
The street teaches you that effort is only half the story. Ratio and caster matter. So does hydrodynamic balance. A slightly quicker steering box with a modest assist curve and proper alignment can feel tighter and safer than an over-assisted system with a vague gear. That is why the best kits include a matched gear-and-pump pairing, or at least clear guidance on pump pressure and flow. The rest of the equation lives in the linkages: an aftermarket steering shaft with a proper steering universal joint can save knuckles and improve geometry in cramped bays.
The daily-driver sweet spot
Most owners of classic trucks and muscle cars want a steering feel that mimics a late-model sedan at low speed and firms up on the highway. If that is your goal, look for a kit that pairs a 12.7 to 1 or 14 to 1 steering box with a Saginaw-type pump delivering roughly 2.0 to 2.5 gallons per minute and 1,200 to 1,400 psi. User reports consistently say that combination strikes the right balance between parking-lot ease and stability on the interstate.
One recurring lesson from customer reviews, echoed by my own experience, is that the pump bracket and pulley alignment will make or break the install. Many unhappy comments trace back to an inch of misalignment and a belt that squeals. The better vendors include slotted brackets with triangulated support and clear pulley-depth guidance. The others send a nice box of parts and leave you to fabricate.
An example archetype is the classic GM Saginaw-based package for mid-60s to late-70s cars. Owners love it because parts are plentiful and serviceable. The aftermarket steering components around it are mature. If a hose fails on a road trip, the local parts store usually has a replacement on https://www.borgeson.com the shelf.
Track-day and spirited street builds
A handful of owners write glowing reviews of rack-and-pinion conversions for pony cars and vintage imports. The best of those kits redesign the crossmember and engine mounts to maintain geometry. Others hang a universal rack between two u-joints and call it a day. The feedback splits along a simple line. When the kinematics are right, a rack brings precision and a light, modern feel. When they are wrong, the wheel tugs over mid-corner bumps and the car feels skittish on crowned roads.
For drivers who prefer a muscular, connected feel, a fast-ratio steering box conversion kit with a firm-valved pump remains a favorite. It keeps the original steering architecture, maintains bump steer characteristics the chassis was designed around, and reacts predictably at the limit. Several autocross regulars I trust have moved back to a quick box from a universal rack after fighting geometry quirks. You can chase steering effort with springs, bars, and alignment, but you cannot fake a rack that sits too high or too far forward relative to the control arm pivots.
Trucks that earn a living
Heavy half-ton and three-quarter-ton trucks from the 70s through early 2000s benefit enormously from a manual to power steering conversion. Work-truck owners talk less about steering feel and more about reliability. They want no leaks, no wandering with a trailer, and no surprises on rough job sites.
The most praised truck kits in the reviews share a few design cues. They include a new or reman box with proper sector shaft seals, not a mystery-yard core. They ship with a robust rag-joint replacement, often a double-D aftermarket steering shaft with a quality steering universal joint. They include a return line cooler or at least recommend one for snowplow duty. Owners who commute to job sites in Minnesota will tell you a small stacked-plate cooler pays for itself by keeping pump seals happy in subzero starts.
One detail that separates decent from excellent in truck kits is the pitman arm. Good kits supply a model-specific arm with the correct taper and drop. Cheaper kits reuse the original arm and advise you to “make it fit,” which often leads to binding or funky toe change through travel.
Kits that lead the pack
I avoid brand roll calls that read like affiliate links. Instead, here are the traits that show up over and over in positive user feedback, regardless of the logo on the box.
- The kit includes a matched pump-and-box with documented pressure and flow, plus clear instructions for reducing assist if you run skinny tires or a quick ratio. The hardware package is complete, including proper grade fasteners, flare adapters, return line clamps, and a reservoir with an integrated filter or baffle. The steering shaft solution is thought through. If the exhaust or headers are close, a compact steering universal joint and heat sleeve are included or recommended. The instructions show clocking and phasing. Hoses are the right length with clockable ends, or the vendor offers custom-length lines to order. Owners hate coiled hose slack rubbing on frames. Support is real. When a box seeps at the input shaft, the vendor answers the phone and ships seals or a replacement without drama.
That short list covers most of what happy reviewers mention first. It also lines up with what I look for before bolting a kit onto a customer’s car.
Steering shafts and joints matter more than you think
Plenty of conversions run fine during the first week and develop play after a month. The culprit is often the link between column and box. If the car still has the original rag joint, the rubber may be tired. Add power assist and the extra torque can wring the joint, masking alignment and making the wheel feel springy around center.
Upgrading to an aftermarket steering shaft with a quality steering universal joint tightens everything. Universal joint steering components let you fine-tune angles to clear long-tube headers or tight shock towers. Double-D or splined shafts, when properly phased, transmit a clean, linear motion that helps the box do its job. Owners who add a collapsible section for safety often remark how surprisingly solid the wheel feels afterward.
The trick is phasing. Misaligned u-joints add a cyclic feel to the wheel. Most instructions tell you to keep the yokes in the same plane. Follow that advice. Another tip from the field, if your column angle is steep, two u-joints with an intermediate support bearing will beat a single joint working near its limit. It costs more, but steering that does not bind at full suspension droop is worth it.
Real-world installs that went right
A 1967 Camaro in my shop came in with forearms-sized biceps required to park it. Manual box, wide front tires, too little caster. We chose a fast-ratio box with a Saginaw pump and a compact reservoir, reused the long water pump pulley stack, and added an aftermarket steering shaft with two u-joints to clear the headers. Owners online had flagged interference at the column with certain headers, so we pre-fit and heat-wrapped the lower joint. We set the pump relief to about 1,250 psi and bled the system with the front end in the air. The owner reported back a week later that it felt modern without feeling numb. The combination of ratio, modest assist, and 4.5 to 5.0 degrees of caster made that happen.
A 1991 K1500 snowplow truck arrived for a mid-season rescue with a howling pump and a wandering wheel. The owner had done a manual to power steering conversion years earlier using a used box and a mixed-bag pump. We installed a new box with tighter torsion valve, added a small plate cooler in the return line, replaced the cracked rag joint with a splined shaft and steering universal joint, then flushed the system with proper low-temp fluid. Several online reviews of the same kit mentioned a firmer on-center feel, and we saw the same result. Towing stability improved, and the pump stopped cavitating on cold mornings.
A British sports car story rounds things out. A Triumph TR6 received an electric-hydraulic pump feeding a small rack as part of a power steering conversion kit tailored to limited engine bay space. The internet loves to argue about electric versus belt-driven pumps. In this case, owner reviews and our own test drive agreed the electric pump quieted idle vibration and freed up engine bay routing. We mounted the pump behind the radiator support, ran short lines to the rack, and isolated the pump with rubber grommets. Steering feel improved, and the cabin stayed cooler without a pressure hose passing near the exhaust.
Avoiding the pitfalls users complain about
Most one-star reviews cluster around the same five issues. If you address them in the garage, your odds of happiness rise sharply.
- Bracket and pulley misalignment. Measure from crank pulley face to pump pulley face. Use shims and verify belt tracking under load. If the pulley overhangs the shaft too far, it will walk. Air trapped in the box. Bleed with the front tires off the ground, engine off, lock-to-lock slowly, then short engine-on pulses. Recheck fluid after a test drive. Over-assist with quick ratio. Drop pump relief pressure or switch to a firmer valve. Many vendors offer shims or replacement flow control valves. Heat soak. Add a small cooler on the return line and route hoses away from headers. Even a coil of metal line in front of the radiator helps on budget builds. Rag joint fatigue. Replace it with a proper aftermarket steering shaft if there is any doubt. Slop here magnifies every other imperfection.
Those points show up again and again in owner threads and vendor Q&A sections. They are not exotic, just easy to overlook when you are excited to go for a test drive.
How to weigh real reviews
User reviews concerning steering kits can be tricky. A great many people post right after the first drive, when euphoria masks minor quirks, or right after a frustrating install, when a single stuck bolt colors the whole kit. Look for reviews written two to six months after installation. Those tend to mention leakage, hot idle effort, and highway stability, which do not show up on day one. Prioritize comments that include what ratio box, tire size, and alignment settings the owner used. A 235 front tire at stock caster tells a different story than a 275 tire with aggressive caster and lowered ride height.
The gold-standard review mentions parts support. When a seal fails and the vendor ships a replacement, that tells you the company stands behind its product. You are not just buying parts, you are buying the right to a phone number when something drips.
Where universal fits and where it falls short
Universal joint steering and generic pump brackets sound convenient. They can be. They are also the source of many install-time headaches if you expect them to bolt up like OEM. Use universal parts when space is tight or when headers and engine swaps force custom angles. Expect to cut, fit, measure, and retry. Owners who go in with that mindset are the ones who write satisfied reviews. They celebrate that the universal parts let them thread a shaft through a maze of tubes and heat shields and come out with a smooth turn.
By contrast, if your car is stock and you want a quick, predictable result, a model-specific steering box conversion kit with defined hose lengths, pump brackets that fit your front accessory drive, and a recommended alignment sheet will save hours and reduce risk. The people who complain about universal kits rarely have fab tools on hand, and the people who rave about them enjoy making parts fit.
The alignment conversation no one should skip
A power steering conversion exposes sloppy alignment. Most stock specs for sixties and seventies cars call for minimal caster and generous toe-in to calm manual steering. Once you add assist, you gain the freedom to add caster and reduce toe. Owners who report the most satisfying results typically run more positive caster, near zero toe or a hair of toe-in, and keep camber within reason for tire wear. Shops familiar with track-day alignments can tailor a street-friendly version that transforms feel without eating tires.
Do not ignore steering stops. If your new box or rack allows more angle than the tie rods or ball joints can handle, you will hear an ugly clunk, followed by a parts order. Several owners mention adding small shims or adjustable stops to keep the steering within safe limits. That simple step protects joints and keeps the wheel from binding at parking-lot extremes.
Power steering hoses and fluid, the quiet heroes
Hose quality shows up in reviews more than you might expect. Cheaper hoses harden near headers and weep at crimped ends. If the kit’s hoses feel flimsy, budget for better lines or add heat sleeves. Route the return line with gentle bends. Tight kinks cause aeration that presents as a moan at idle or a jitter in the wheel.
Fluid choice matters in extreme climates. Owners in hot regions do well with a high-quality synthetic PS fluid. Cold climate drivers benefit from fluids labeled for low-temp service. Automatic transmission fluid can work in some systems, but only if the vendor specifies it. Mixing fluids is a great way to swell seals and collect one-star reviews.
Judging value beyond the sticker price
The cheapest kits often cost more by the time the car steers well. Count gaskets, hose upgrades, brackets that really fit, and a cooler if you tow or live in a hot place. Also count your time. A kit that saves four hours of fiddling is worth the premium if your weekends are scarce.
There is also the question of future service. A steering universal joint you can buy off the shelf beats a proprietary one when you are on a road trip. A pump with a common seal kit lowers maintenance costs. Owners who keep cars for years appreciate systems built from widely available parts. That bias shows up in satisfied long-term reviews.
When electric assist earns its keep
Column-mounted electric power assist units have a small but growing fan base among classic owners who want help at parking speeds without plumbing a hydraulic system. The best user reports come from light cars with modest front tire widths and reasonably straight steering shafts. The units can backdrive through manual gears without adding play if installed correctly. On heavier vehicles and trucks, owners often report a wooden feel or busy assist at speed, which some tune around with speed-sensitive controllers.
This is a case where reading reviews from cars like yours pays off. An electric kit that delights a lightweight coupe owner may disappoint in a big-block intermediate with sticky tires. Hydraulic systems still carry the day for heavier applications.
Final guidance from the shop floor and the owner forums
The best outcomes cluster around a simple recipe. Pick a power steering conversion kit that matches your vehicle’s weight and tires, with a steering box ratio and pump pressure that suit how you drive. Upgrade the link between column and box with an aftermarket steering shaft and a proper steering universal joint if there is any hint of play or interference. Treat alignment as part of the conversion rather than an afterthought. Manage heat with routing and a cooler if needed. And value vendors that ship complete hardware and answer the phone.
There is no single winner for every car or truck. The reviews that matter most sound like this, months later. No leaks, no wander, easy to park, and steady at 75. The wheel comes back to center on its own. The pump is quiet. The parts fit without a wrestling match. If that is the theme you read in a kit’s feedback, you are probably looking at a keeper.
For those piecing together their own solution from aftermarket steering components, the same standards apply. Choose a steering box conversion kit or rack that preserves geometry, a pump with known pressure and flow, and link it all with quality joints and shafts. The first drive should feel natural, not dramatic. And the best compliment you will get will be the one I hear most from satisfied owners, spoken with a shrug after months of use. It just works.
Borgeson Universal Co. Inc.
9 Krieger Dr, Travelers Rest, SC 29690
860-482-8283