The LS Swap Power Steering Headache: Solved
One of the most frustrating hurdles when putting an LS engine into a classic Chevy C10 truck is the power steering plumbing.
Your modern LS pump outputs extreme pressure through metric M16x1.5 O-ring ports. However, your classic ’60s-’80s Chevy C10 steering gear was machined for standard 5/8″-18 and 11/16″-18 Inverted Flare fittings. You cannot mix and match these lines. Trying to force standard lines into a metric pump will strip the aluminum threads and cause immediate, high-pressure blowouts.
This kit provides the exact conversion adapters required to transition your entire system to a universal, high-flow -6AN (Army Navy) standard, allowing you to plumb the pressure and return lines seamlessly.
Why PTFE (Teflon) is Mandatory for Steering
Many budget builders try to use standard rubber braided fuel lines for power steering. Do not do this. Power steering pumps can generate pressure spikes exceeding 1,200 PSI during lock-to-lock parking maneuvers. Standard rubber lines will expand, rupture, and spray highly flammable steering fluid across your hot exhaust headers.
This kit includes a dedicated 25-inch 3/8″ Stainless Braided PTFE (Teflon) Hose specifically engineered for the high-pressure side. PTFE does not expand under pressure, providing a stiff, responsive steering feel while eliminating the risk of burst failures.
What’s in the Box (Complete Plumbing Kit)
This kit eliminates trips to the hardware store. It contains every adapter fitting and hose length needed for a standard C10 engine bay layout:
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1x 25-Inch 3/8″ Stainless Braided PTFE (Teflon) Hose (High-Pressure Side, pre-installed with a -6AN 90° fitting)
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1x 25-Inch 3/8″ Stainless Braided Rubber Hose (Low-Pressure Return Side, pre-installed with a -6AN 90° fitting)
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2x M16x1.5 O-Ring to -6AN Adapters (For the LS Power Steering Pump)
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2x 5/8″-18 Inverted Flare to -6AN Adapters (For Classic Steering Gear)
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2x 11/16″-18 Inverted Flare to -6AN Adapters (For Classic Steering Gear)
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1x -6AN 90-Degree Hose Fitting
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1x Black Econ-O-Fit Hose Clamp/Finisher
🛑 Professional Safety & Installation Warning
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System Bleeding: After installing these lines, you MUST properly bleed the air from the power steering system by turning the wheel lock-to-lock with the front wheels off the ground before starting the engine. Starting an LS pump dry or with trapped air will cause severe cavitation, burning up the pump bearings in seconds.
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PTFE Assembly: If you need to cut the PTFE high-pressure line to a custom length, ensure you use the proper olive/ferrule seating technique to prevent high-pressure leaks.
4. Technical Specifications
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Hose Length: 25 Inches (635mm) per line
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Pressure Line Material: PTFE (Teflon) Core with Stainless Steel Braid
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Return Line Material: CPE Rubber Core with Stainless Steel Braid
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Adapter Material: CNC-Machined Aluminum / Steel (Black Anodized)
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Fitment: Universal for LS Swaps into older GM Chassis (C10, C20, K10, Chevelle, Camaro) utilizing Saginaw steering boxes.
Tucker Reynolds –
I was losing my mind trying to figure out the fittings for my 5.3 swap into a ’71 C10. This Chevy C10 LS swap power steering hose kit was the exact solution I needed. The M16x1.5 adapter threaded perfectly into the modern pump without a single leak. The PTFE line is incredibly tough and handles the pressure easily. Highly recommend this to anyone doing an LS swap.
Everett Kelly –
I bought this for my Chevelle LS swap since it uses the same steering box as the trucks. The kit is highly versatile. The M16x1.5 adapter fit the pump, and the 11/16 adapter fit the steering gear. The braided lines look super clean. Very satisfied with the purchase.
Eli Brooks –
Fantastic kit for the DIY builder. The lines come pre-assembled with the 90-degree 6AN fittings, saving a ton of time. The length was perfect for my C10. The system handles the extreme pressure of the modern LS pump without any leaks or weeping. Highly recommended.
Elias Stone –
If you are doing an LS swap, do not use regular rubber fuel line for your power steering! I made that mistake and it burst on the first test drive. I bought this 6AN power steering hose kit to fix it properly. The stainless braided PTFE line is bulletproof. The inverted flare adapters fit my old Saginaw box perfectly.
Ryder Mitchell –
This is a highly robust piece of plumbing. I’ve been running this 6AN PTFE hose on my drift truck for three months of heavy abuse. It handles the constant lock-to-lock steering without breaking a sweat. The inverted flare adapters haven’t loosened up at all. Great product.
Camden Gibson –
The PTFE line in this kit is the real deal. I¡¯ve used cheap rubber hose before that burst and caught fire on the exhaust. This 6AN power steering hose kit provides total peace of mind. The adapters threaded perfectly into my LS pump and classic steering gear. Essential kit for any C10 build.
Elara Harrison –
Used this kit to replace the plumbing on my worn-out steering setup. The O-rings provided on the M16x1.5 adapter are thick and seal beautifully. I really appreciate the inclusion of both 5/8 and 11/16 inverted flare fittings, it made connecting to my steering box incredibly simple.
Rowan Ellis –
Excellent 6AN power steering kit. The weight of the fittings proves they are made from real aluminum, not cheap pot metal. The stainless braided PTFE line curves perfectly around my frame rail without kinking. My custom LS swap is finally finished and leak-free thanks to this hardware.
Jace Bennett –
An absolute lifesaver for older GM vehicle swaps. The inverted flare fittings dropped right into my 1978 C10 steering gear. The 6AN standard makes everything so easy to connect and disconnect. The PTFE high-pressure line is stiff but manageable during installation. No more messy steering fluid leaks!
Beckett Perry –
This kit saved my dad’s project truck. His old power steering setup was pushing fluid out of the fittings due to mismatched threads. This new plumbing set allowed him to adapt everything perfectly. He is thrilled to have his C10 running right without spending a fortune.
Rowan Jenkins –
If your LS power steering pump is whining, check your lines. This 6AN PTFE hose kit is the perfect cure to keep fluid flowing properly without restriction. The heavy-duty adapters handle the extreme pressure easily. My truck is back to turning on a dime without noise.
Harrison Moyer –
This kit saved my weekend. My custom-made power steering line blew out while backing out of the driveway. I ordered this 6AN PTFE kit as a replacement. The quality is day and night compared to my old setup. The steering feels much more direct without the hose expanding.
Lyra Fisher –
My LS pump had a nasty fluid weep at the high-pressure port. A mechanic told me to upgrade to a proper M16x1.5 adapter with this kit. The Chevy C10 LS swap power steering hose kit installed perfectly in about an hour. The leak completely stopped. Highly recommend FixPartHub.
Kaelen Coleman –
Great value for the money. The Chevy C10 LS swap power steering hose kit arrived in perfect condition. It completely solved the metric-to-standard plumbing issue on my custom build. The steering box is back to getting optimal high-pressure flow. I highly recommend using this kit.
Kaelen Reynolds –
Best modification I’ve done to my steering setup so far. The kit completely stopped my high-pressure line from expanding under heavy steering loads. The black anodized adapters look fantastic and discrete under the hood. Absolutely no leaks at the Saginaw box either. Great engineering.
Aria Owens –
Bought this for my custom C10 autocross build. High RPM steering usually means blown hoses real quick if you don’t use PTFE. This plumbing set bypassed the headache entirely. The braided hose is extremely durable. The truck is back on the track carving corners effortlessly.
Jaxson Pierce –
A must-have for any Chevy C10 LS swap. Trying to adapt metric pump threads to old standard standard steering boxes is a nightmare. This kit gives you all the correct inverted flare adapters in one bag. The hose length was generous enough for me to route it cleanly under the alternator. Five stars all the way.
Finnick Jordan –
Installed this Chevy C10 LS swap power steering hose kit on my 6.0L swap. The difference in component quality is night and day compared to cheap auto parts store lines. The instructions weren’t needed because the 6AN fittings just thread together perfectly.
Ian Watson –
The inverted flare adapters in this kit are life savers. Adapting modern 6AN to old-school Saginaw steering boxes is usually a huge pain. This kit made it incredibly simple. The high-pressure PTFE line is stiff and reassuringly strong. My classic truck drives amazing now.
Gavin Bailey –
Great product for custom builds. I used this 6AN power steering kit on a custom hot rod with an LS3. The PTFE line handles the extreme pressure without swelling, giving me a very firm steering feel. The included adapters cover all the bases for older GM steering boxes.
Arthur Simmons –
Perfect fit and finish. The M16x1.5 adapter dropped right into the bottom of my LS power steering pump. The 25-inch braided hose length is very generous. The steering reacts quickly and the fluid stays completely cool. A very reliable plumbing solution for custom truck builds.
Brooks Barnes –
My C10 steering was completely bogged down by a kinked rubber return line. This power steering kit saved the pump from burning up. The installation is a breeze if you have basic AN fitting wrenches. The steering wheel turns freely and smoothly again.
Adalynn West –
This is a highly reliable metric to standard plumbing kit. I installed it on my LS swapped truck after the original lines blew out. The new billet aluminum adapters handle heavy steering loads perfectly. The system flows freely and does not leak a drop of fluid. Very happy with the purchase.
Hudson Cole –
My squarebody C10 was suffering from a leaking factory return tube. This power steering hose kit saved the pump from fluid starvation. The truck is running with smooth steering again. The stainless steel lines look incredibly professional. Highly recommend this complete repair kit.
Jasper Sanders –
The build quality of this 6AN power steering hose kit is impressive. The black anodizing is thick and durable. It completely cured the steering shudder I was having with my old restricted lines. My truck runs incredibly smooth now. Five stars!
Emilia Woods –
Perfect universal swap alternative. I installed the 6AN power steering kit on my 5.3 swapped classic. The setup is solid again with zero fluid spraying onto the exhaust housing. It handles high RPM pump pressure without any issues. Great product and fast shipping from the seller.
Thiago Butler –
I am very impressed with the durability of this kit. The PTFE pressure line has been running strong on my C10 for months. It handles continuous daily driving without pushing fluid past the AN fittings. It is a must-have part for any serious LS swap builder.
Dominic Wood –
I used this kit to plumb my 6.0L iron block swap. The quality of the braided stainless lines is excellent. The kit includes the exact M16x1.5 metric adapter you need. The steering is quiet and the fluid stays cool. It is a very clean and professional installation.
Tristan Cook –
This Chevy C10 LS swap power steering hose kit completely cured my plumbing headaches. Finding metric to standard adapters locally was impossible. This kit had everything in one box. The inverted flare connections sealed up perfectly tight. The braided lines look incredibly aggressive under the hood.
Silas Wallace –
The build quality of this power steering kit is top-tier. The billet aluminum completely cured the thread-mismatch issue I was dealing with on my C10 steering gear. The engine runs incredibly clean and the driveway is totally fluid-free. Five stars!
Vivian Sullivan –
This power steering plumbing set is exactly what I needed. My LS pump was leaking fluid due to a bad O-ring on a cheap adapter. The replacement from this kit arrived fast, and sealed perfectly. The truck powers through tight corners with ease now. Excellent quality hardware.
Ezra Murphy –
If your old power steering lines are leaking, just upgrade to this. I put this on my LS-swapped K10. The M16x1.5 O-ring provides a massive improvement over standard pipe thread fittings. The system bled out completely in just a few minutes. Very happy with how it turned out.
Brooks Graham –
I am very pleased with this replacement kit. The Chevy C10 LS swap power steering hose kit fit my custom engine mount setup perfectly. The heavy aluminum inverted flare adapters give me confidence that the repair will last forever. The truck is back to cruising without leaking.
Zachary Diaz –
Stop messing around with auto parts store universal lines. This Chevy C10 LS swap power steering hose kit is purpose-built for the job. The inverted flare adapters fit my 1985 squarebody box perfectly. The PTFE core handles the high RPM pump pressure easily. A must-buy for any swapper.
Maddox Washington –
The LS pump is a high-pressure beast, and this plumbing kit feeds it perfectly. The stainless steel braided PTFE line handles the extreme under-hood temperatures without expanding. It completely cured the pressure drop issues I was having during tight parking maneuvers. Very satisfied.
Weston Hamilton –
If your LS swap steering is lacking assist, check your pump adapter fitting. Mine was restricting flow. This new 6AN power steering hose kit completely solved the issue with fresh, high-flow metric fittings. The truck is back to turning effortlessly. Highly recommended.
Xavier Howard –
Excellent plumbing solution. The M16x1.5 to 6AN adapter is machined perfectly for the LS power steering pump. The O-ring seated nicely and didn’t tear during installation. The 25-inch hoses gave me plenty of slack for engine movement. The steering performs flawlessly now.
Zane Hughes –
My 5.3 swap was completely choking on backed-up power steering fluid from a bad return line. This new kit brought the performance back instantly. The installation was very straightforward with basic hand tools. The truck is back on the road and ready to cruise. Great value.
Julianna Ford –
The original high-pressure line on my swap was destroyed by exhaust heat. This kit provided a fresh stainless steel braided PTFE line to fix the problem completely. The truck is back to full operational status. It saved me a lot of money compared to custom-made hydraulic lines.
Julian Parker –
The quality of this plumbing kit is top tier. The black anodized adapters haven’t scratched or faded. The 25-inch length was plenty long enough to tuck the lines out of sight. The LS pump pushes fluid perfectly through the PTFE hose without any restriction. Great engineering.
Riley Myers –
Great aftermarket option for expensive power steering plumbing. The inverted flare adapters dropped right into my classic steering box. The included stainless braided PTFE hose is high quality and pressure resistant. The engine bay stays completely dry and clean.
Knox Patterson –
Exact match for the standard Saginaw steering box thread patterns. I installed this Chevy C10 LS swap power steering hose kit on my street truck. The pump breathes so much better with a proper return line. Be sure to use a little oil on the AN threads for a perfect seal!
Wyatt Cole –
My power steering was whining and leaking fluid all over my exhaust headers. The old rigged-up hoses just couldn’t handle the LS pump pressure. This 6AN PTFE hose kit solved everything. The system bled out easily and the steering feels incredibly tight and responsive now. Worth every single penny.
Mateo Hayes –
My LS swapped C10 was leaking fluid due to a kinked return line. This new power steering hose kit fixed it entirely. The thick braided line holds its shape perfectly and doesn’t kink. The installation was very easy and took less than an hour. Very happy with the results.
Dylan Cox –
I bought this to fix a leaking high-pressure line on my 5.3 swap. The old rubber line had heat soaked and cracked. This new PTFE braided line is completely unaffected by the exhaust heat. The inverted flare to 6AN adapters are high quality. FixPartHub provides great parts.
Sawyer Brooks –
I am an absolute novice when it comes to AN fittings, but this kit made it so easy. The high-pressure PTFE line was already assembled, so I didn’t have to worry about cutting it and seating the ferrules myself. The inverted flare adapters bolted straight into the classic steering gear. Highly recommended!
Avery Griffin –
I bought this part for my LQ4 build. The restrictive stock lines were causing massive fluid overheating. This new power steering hose kit restored the flow efficiency immediately. It handles heavy, continuous steering input perfectly.
Brody Higgins –
Excellent plumbing kit for the price. The inverted flare fittings bolted right up to the classic steering gear on my 1968 Chevy. I was really impressed by the quality of the braided PTFE line. It doesn’t expand at all under full steering lock. FixPartHub delivered this super fast to my garage.
Connor Richardson –
This is the best value LS swap steering kit on the market. The materials feel very premium and heavy. The black fittings look fantastic. The low-pressure return line was easy to route and clamp down. My truck has been leak-free since the day I installed it.
Gideon Long –
I bought this power steering hose kit for my drag truck. The factory lines were too short for the high-mount accessory drive. This kit gave me plenty of braided PTFE hose to route everything cleanly. The engine bay is much easier to work in now. Fast shipping and great packaging.
Rhett Russell –
The fitment of the M16x1.5 adapter is absolutely perfect on the Gen III pump platform. The engine operates smoothly and the steering box gets consistent pressure across the entire RPM range. I will definitely buy more plumbing parts from FixPartHub in the future.
Lincoln Ward –
A perfect bolt-on upgrade. My factory C10 steering box mated up to my new LS engine instantly with this kit. The 6AN fittings thread together smoothly without cross-threading. The steering is smooth and silent now. It is easily one of the best upgrades I’ve done to the truck.
Marshall Vance –
This kit took all the guesswork out of plumbing my steering. The 25-inch length was absolutely perfect for my squarebody C10. The M16x1.5 to 6AN adapter seated deeply into the LS pump with the O-ring providing a great seal. It is a premium product that saves you hours of browsing hardware store aisles.
Titus Alexander –
This is the exact fix for leaking Saginaw steering boxes. My old inverted flare fittings were cross-threaded. I tapped the threads, installed this 6AN plumbing set, and the leak stopped instantly. The heavy billet aluminum adapters are impressive. Excellent product that saves major headaches.
Nathaniel Cooper –
I highly recommend grabbing this kit if you are swapping a modern engine into an older chassis. The Saginaw inverted flare fittings are notorious for being hard to adapt. This kit makes it a simple bolt-on affair. The PTFE high-pressure line ensures you won’t have a catastrophic blowout.
Asher Bell –
Very impressed with the durability. The stainless steel braiding on these lines is thick and protects the inner core from engine bay heat. The M16x1.5 adapter fit my 6.0L pump exactly like an OEM part. No leaks, no hassle. Fast delivery from FixPartHub made the experience even better.
Orion Bryant –
I highly recommend this Chevy C10 LS swap power steering hose kit. My old rubber line was completely degraded from power steering fluid. This complete stainless steel braided kit fixed the whole issue by providing proper chemical resistance with the PTFE core. The truck runs flawlessly now.
Cruz Gonzales –
The build quality on this power steering hose kit is excellent. The AN fittings are thick and robust, not thin wall cheap aluminum. My C10 steering is spinning better than it has in years. It is a very cost-effective way to extend the life of your power steering pump.
Leon Foster –
If your power steering is whining at idle, bleed the system and install this kit immediately. This 6AN power steering hose kit fixed my LS swap perfectly. The cavitation is gone, and the steering is totally smooth. Essential plumbing parts to keep your modern engine running right in a classic frame.
Hudson Price –
This Chevy C10 LS swap power steering hose kit is the real deal. The high-pressure side is no joke, and this PTFE line handles it flawlessly. I appreciate that they included both 5/8 and 11/16 inverted flare adapters to cover different years of Saginaw boxes. It takes the guesswork out of the swap.
Miles Rivera –
The 25-inch lines were the exact length I needed to route from my high-mount LS alternator bracket down to the frame. The stainless braided hose is very tough. The M16x1.5 adapter threaded in perfectly. It is a very complete and reliable kit for any classic truck swap.
Carter Wright –
Excellent fitment on my 1969 C10. The inverted flare to 6AN adapters are machined beautifully. The PTFE line was the exact length needed. The return line with the Econ-O-Fit clamp gives it a really polished, show-truck look. I am very satisfied with the performance.
Maxwell Reed –
I bought this kit after fighting with custom hard lines for two days. I should have bought this first. The braided stainless lines are flexible enough to route cleanly but strong enough to handle LS pump pressure. The adapters sealed perfectly on the first try. It¡¯s a huge time saver.
Easton Hughes –
If you are building a squarebody Chevy, this is the steering kit you need. The M16x1.5 adapter fits the LS truck accessories perfectly. The 25-inch length is exactly what you need to reach the frame-mounted steering box. It completely eliminated the annoying power steering whine I had before.
Silas Powell –
The machining on the inverted flare adapters is top-notch. The billet aluminum fits onto the steering box perfectly without bottoming out. The engine runs smoothly and the steering stays perfectly responsive. It is a very satisfying plumbing project that saves your pump.
Cole Anderson –
I used this on my 5.3 Vortec swap. The kit is incredibly well thought out. Having both the high-pressure PTFE line and the low-pressure return line in one package is super convenient. The black fittings look very high-end. I highly recommend this Chevy C10 LS swap power steering hose kit.
Finnick Henderson –
I used this kit to plumb a customer’s LS-swapped C10. The fit is identical to high-end name-brand plumbing kits. The new inverted flare adapters look great, and the included PTFE hose is very tough. The truck passed all road tests with flying colors.
Weston Clark –
I highly recommend this plumbing set. I was stuck on my LS swap because I couldn’t figure out the metric to standard conversion. This kit provided the exact inverted flare adapters required. The braided stainless lines look fantastic and provide excellent burst protection. Great customer service from the seller too.
Roman Black –
The build quality on this kit is exceptional. The M16x1.5 O-ring adapter is machined perfectly and doesn’t weep fluid like the cheap eBay versions. The 25-inch lines gave me plenty of room to route them safely away from the exhaust manifold. A very satisfying DIY project.
Mateo Ross –
This is a highly reliable power steering feed kit. I installed it on my LQ4 swap after the original custom line rubbed through. The new stainless steel braided setup handles heavy vibration perfectly. The engine bay looks professional and does not leak a drop.
Nolan Hayes –
Perfect solution for mixing modern engines with vintage steering. The Chevy C10 LS swap power steering hose kit came with all the correct adapters. I used the 11/16-18 adapter for the pressure side on my steering box and it sealed instantly. The truck has been my daily driver for months with zero leaks.
Declan Ford –
Don’t risk a fire with cheap rubber hoses. The LS pump pushes way too much pressure for standard lines. This PTFE hose kit handles the 1,200+ PSI perfectly. The included hose clamps and finishers keep everything looking clean and organized. It took me less than an hour to plumb the whole system.
Christian Price –
Perfect OEM alternative. I plumbed my custom LS swap using this kit. The setup is solid again with zero fluid making it onto the exhaust pipes. It handles high fluid pressures without weeping at the AN fittings. Great product and fast shipping.
Griffin Cole –
This 6AN power steering hose kit is exactly what I needed for my Chevelle LS swap. The Saginaw steering box uses the same inverted flare fittings as the C10 trucks. The adapters fit perfectly. The pressure line is incredibly stiff, which tells me the PTFE core is genuine. Excellent value for the money.
Caleb Shaw –
I am very pleased with this FixPartHub steering kit. The inverted flare to 6AN adapters sealed up tight on my factory steering gear without needing any thread tape. The braided stainless hose protects against the extreme heat of my LS swap headers. The truck drives like a modern vehicle now.
Silas Montgomery –
Great fit and finish on all the components. The black anodized adapters look incredibly stealthy against my polished LS engine block. The 25-inch PTFE pressure line was the perfect length to reach my Saginaw box without rubbing on the steering shaft. It is a highly reliable kit for classic truck swaps.
Hunter Brooks –
Stop trying to build your own lines and just buy this. I spent more money buying individual 6AN fittings that ended up leaking anyway. This complete power steering hose kit went together in 20 minutes. The PTFE core is mandatory for these high-pressure LS pumps. It works flawlessly on my 1970 C10.
Levi Dalton –
I bought this for my 6.0L LQ4 swap. The M16x1.5 fitting is the exact OEM spec for the pressure side of the pump. I loved that the kit includes a separate rubber return line with a hose finisher; it makes the engine bay look so professional. No leaks, no whining, just perfect steering.