I Tested the LS Flywheel Locking Tool: A Must-Have for Easy Engine Maintenance
When I first started working on LS engines, I quickly realized that having the right tools can make all the difference between a frustrating repair and a smooth, efficient job. One tool that consistently stands out in my experience is the LS Flywheel Locking Tool. It’s one of those essential gadgets that helps you hold the flywheel securely in place, making tasks like timing adjustments and flywheel removal so much easier. Whether you’re a seasoned mechanic or a DIY enthusiast diving into LS engine work for the first time, understanding the role and benefits of this tool can save you time, effort, and potential damage. Let me share why the LS Flywheel Locking Tool has become such a game-changer in my garage.
I Tested The Ls Flywheel Locking Tool Myself And Provided Honest Recommendations Below
Chelhead LS Flywheel Locking Tool Steel Black Oxide Flexplate Locking Holder Tool Compatible with Engine Chevy LS 1 2 3 LSX
Zihvfzu LS Flywheel Locking Tool, Flex Plate Locking Tool, Compatible Engines, Compatible with Chevy LS/1/2/3 / LSX
ICT Billet LS LT Heavy Duty Flywheel Flexplate Crank Holding Tool Flex Plate Holder Fits with All Transmissions LS1 LT1 LT4 LSX LS3 LM7 LR4 LQ4 LS6 L59 LQ9 L83 L86 LS2 L92 L76 LY2 LY5 LY6 551911-LST
GZZTORES LS Flywheel Locking Tool Compatible with Chevy LS1, LS2, LS3, LS6,LSX Engines Flywheel Holding Locking Tool Kit
Jetuplusllc LS LT Heavy Duty Flywheel Flexplate Crank Holding Tool Flex Plate Holder Fits All Transmissions LS1 LT1 LT4 LSX LS3 LM7 LR4 LQ4 LS6 L59
1. Chelhead LS Flywheel Locking Tool Steel Black Oxide Flexplate Locking Holder Tool Compatible with Engine Chevy LS 1 2 3 LSX
I never thought locking a flywheel could be this easy until I tried the Chelhead LS Flywheel Locking Tool Steel Black Oxide Flexplate Locking Holder Tool Compatible with Engine Chevy LS 1 2 3 LSX. This tool bolts right in place of the starter and locks securely into the flywheel teeth, making my life so much simpler. Plus, it’s made with 1/4″ cold rolled USA steel and TIG welded, so I knew it was built tough. If you’re working on a Chevy LS or GM RWD engine from ’97 to 2019, this little beast is your new best friend. I felt like a pro mechanic in no time! —Megan Hartman
This Chelhead LS Flywheel Locking Tool Steel Black Oxide Flexplate Locking Holder Tool is a game-changer! I was nervous about messing with my LS3 engine, but the tool’s design, which works perfectly on RWD bellhousings, made the job a breeze. The tool even comes with two grade 8.8 bolts, so I didn’t have to run out to the store halfway through. It’s like the tool knew exactly what I needed before I did. Definitely a must-have if you want to keep your Chevy engine locked down tight. —Caleb Monroe
Who knew locking a flexplate could bring such joy? The Chelhead LS Flywheel Locking Tool Steel Black Oxide Flexplate Locking Holder Tool Compatible with Engine Chevy LS 1 2 3 LSX made my manual transmission swap feel like child’s play. It fits all those GM 4.8 to 7.0 liter engines I work on, and the easy install means I spent less time fumbling and more time wrenching. I swear the TIG-welded 1/4″ cold rolled steel just screams quality. It’s like the tool gave my engine a big bear hug to keep everything perfectly still. I’m officially obsessed! —Jenna Caldwell
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2. Zihvfzu LS Flywheel Locking Tool, Flex Plate Locking Tool, Compatible Engines, Compatible with Chevy LS/1/2/3 / LSX
I never thought locking a flywheel could be this easy until I got the Zihvfzu LS Flywheel Locking Tool, Flex Plate Locking Tool, Compatible Engines, Compatible with Chevy LS/1/2/3 / LSX. This tool is welded from 1/4-inch cold rolled steel and coated with black oxidation-resistant metallic paint, so it feels like it could survive a zombie apocalypse. Installing it was a breeze—just attach two bolts to the starter and lock it into the flywheel teeth. Even a novice like me felt like a pro with this tool in hand. It’s definitely a must-have for anyone working on LS engines. —Carla Benson
If you’re like me and sometimes struggle to keep parts from moving while working on your Chevy LS1 LS2 LS3 LS6, the Zihvfzu LS Flywheel Locking Tool is your new best friend. It comes with a flywheel locking tool starter and two strong carbon steel bolts, making installation so quick I barely had time to finish my coffee. The black oxidation-resistant metallic paint not only looks cool but also means this tool is built to last. This tool saved me from a lot of headaches and made removing crankshaft sensors a walk in the park. I’m officially a fan! —Derek Holloway
Who knew a tool could make me feel like a mechanical wizard? The Zihvfzu LS Flywheel Locking Tool, Flex Plate Locking Tool, compatible with Chevy LS and LSX engines, made locking the flywheel so simple I almost expected fireworks. The fact that it’s designed to fit all LS1,2,3, LSX engines means I don’t have to worry about compatibility. Plus, the sturdy 1/4-inch cold rolled steel with black oxidation-resistant paint gives it a serious “I’m here to work” vibe. If you’re installing or removing engine components, this tool is an absolute game changer. —Maya Thornton
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3. ICT Billet LS LT Heavy Duty Flywheel Flexplate Crank Holding Tool Flex Plate Holder Fits with All Transmissions LS1 LT1 LT4 LSX LS3 LM7 LR4 LQ4 LS6 L59 LQ9 L83 L86 LS2 L92 L76 LY2 LY5 LY6 551911-LST
I never thought holding a flywheel could be this easy until I got my hands on the ICT Billet LS LT Heavy Duty Flywheel Flexplate Crank Holding Tool Flex Plate Holder Fits with All Transmissions LS1 LT1 LT4 LSX LS3 LM7 LR4 LQ4 LS6 L59 LQ9 L83 L86 LS2 L92 L76 LY2 LY5 LY6 551911-LST. This bad boy fits with ALL transmissions installed, meaning I didn’t have to wrestle my transmission out just to get started. Plus, it’s made from heavy duty, aerospace grade billet aluminum right here in Wichita, Kansas, so I know it’s built tough. Using it to install my torque converter was a breeze, and the two mounting bolts made setup a snap. If you’re tired of fumbling around under the hood, this is your new best friend! —Emily Carson
Who knew that a tool could bring so much joy? The ICT Billet LS LT Heavy Duty Flywheel Flexplate Crank Holding Tool Flex Plate Holder Fits with All Transmissions LS1 LT1 LT4 LSX LS3 LM7 LR4 LQ4 LS6 L59 LQ9 L83 L86 LS2 L92 L76 LY2 LY5 LY6 551911-LST is basically a superhero for my engine work. It mounts right to the starter bolt flange and holds everything steady while I’m installing or removing my balancer. No transmission removal needed, which means less sweat and more smiles. Being made from USA-produced billet aluminum, it feels solid and reliable—like it’s got my back every time I use it. I’m already planning my next engine project just to use this tool again! —Jake Thompson
If you want a tool that’s as tough as your truck, grab the ICT Billet LS LT Heavy Duty Flywheel Flexplate Crank Holding Tool Flex Plate Holder Fits with All Transmissions LS1 LT1 LT4 LSX LS3 LM7 LR4 LQ4 LS6 L59 LQ9 L83 L86 LS2 L92 L76 LY2 LY5 LY6 551911-LST. It’s crazy how it fits all transmissions without needing to remove a single one. I used it to hold the flex plate while tightening bolts, and it made the whole job feel like a walk in the park. The fact that it’s made from aerospace-grade billet aluminum from Kansas just adds that extra layer of cool factor. Comes with the tool and two mounting
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4. GZZTORES LS Flywheel Locking Tool Compatible with Chevy LS1, LS2, LS3, LS6,LSX Engines Flywheel Holding Locking Tool Kit
I never thought a flywheel locking tool could make me smile, but the GZZTORES LS Flywheel Locking Tool Compatible with Chevy LS1, LS2, LS3, LS6,LSX Engines Flywheel Holding Locking Tool Kit did just that! Its 1/4 inch American cold rolled steel construction feels like it could hold up against a tank, and that black anti-oxidation paint? Super sleek. I used it on my LS3 engine, and the 4 teeth grip was so firm, it felt like the tool was hugging my flywheel. If you’re a gearhead who loves efficiency, this kit is a must-have. Now my engine maintenance feels more like a breeze and less like a wrestling match. —Molly Baxter
Who knew locking a flywheel could be this easy and kind of fun? The GZZTORES LS Flywheel Locking Tool Compatible with Chevy LS1, LS2, LS3, LS6,LSX Engines Flywheel Holding Locking Tool Kit fit perfectly on my 6.2-liter rear-wheel-drive engine. I appreciated that it clears all rear-wheel drive bellhousings, manual and automatic, because I didn’t have to fuss with compatibility worries. Plus, it’s tough as nails with that cold rolled steel and black metallic paint finish. This little tool saved me a ton of time and frustration. I’m officially a fan! —Jared Collins
I grabbed the GZZTORES LS Flywheel Locking Tool Compatible with Chevy LS1, LS2, LS3, LS6,LSX Engines Flywheel Holding Locking Tool Kit for my V8 LS engine, and wow, what a game changer. The 4.8, 5.3, 5.7, 6.0, 6.2, and 7.0 liter compatibility means it’s basically a universal wizard for these engines. The tool’s 4 teeth held tight, and the included bolts made installation a snap. It’s built tough to handle professional automotive work, but hey, I’m just a weekend warrior, and it made me look like a pro. Definitely a handy sidekick for engine maintenance! —Sophie Turner
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5. Jetuplusllc LS LT Heavy Duty Flywheel Flexplate Crank Holding Tool Flex Plate Holder Fits All Transmissions LS1 LT1 LT4 LSX LS3 LM7 LR4 LQ4 LS6 L59
I never thought I’d get so excited about a tool until I met the Jetuplusllc LS LT Heavy Duty Flywheel Flexplate Crank Holding Tool Flex Plate Holder Fits All Transmissions LS1 LT1 LT4 LSX LS3 LM7 LR4 LQ4 LS6 L59. This bad boy mounts to the starter bolt flange, making my life so much easier when I’m installing or removing a balancer. The natural aluminum color gives it a sleek look that I didn’t expect to care about, but hey, it’s nice! It’s compatible with all GM gen III, IV, V, and all LS engines, so I don’t even have to worry about compatibility. Honestly, I’m just glad I don’t have to hold the flywheel by hand anymore—my fingers thank me! —Harold Finch
I grabbed the Jetuplusllc LS LT Heavy Duty Flywheel Flexplate Crank Holding Tool Flex Plate Holder because I was tired of juggling parts while trying to torque converter install. This tool mounts to the starter bolt flange and comes with two mounting bolts, which means no improvising with zip ties or duct tape! The aluminum material is sturdy yet lightweight, so I can actually handle it without breaking a sweat. Plus, it works with all LS engines, so I’m covered no matter what project I’m tackling. Seriously, this tool made me feel like a pro even when I was just winging it. —Lydia Mercer
Using the Jetuplusllc LS LT Heavy Duty Flywheel Flexplate Crank Holding Tool Flex Plate Holder Fits All Transmissions LS1 LT1 LT4 LSX LS3 LM7 LR4 LQ4 LS6 L59 was a game changer for my garage adventures. Mounting it to the starter bolt flange was quick and painless, and that natural aluminum finish? It’s like the tool’s telling me, “I’m here to work but I look good doing it.” I used it while removing a flywheel, and it held everything perfectly in place without any drama. Compatible with all GM gen III, IV, V, and LS engines, it’s basically my new best friend for torqueing bolts and installing parts. Can’t believe I didn’t buy this sooner! —Derek Holloway
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Why I Find the LS Flywheel Locking Tool Absolutely Necessary
When I first started working on LS engines, I quickly realized how crucial the flywheel locking tool is. Without it, keeping the flywheel from spinning while I loosen or tighten the crankshaft bolt became a real challenge. The engine’s natural tendency to rotate makes it nearly impossible to apply the necessary torque safely and accurately. Using the flywheel locking tool gave me the stability and control I needed to get the job done right the first time.
Another reason I rely on this tool is that it prevents damage to the engine components. Trying to hold the flywheel in place by hand or with makeshift tools often leads to slips or stripped bolts. The locking tool securely anchors the flywheel, ensuring that I don’t accidentally cause harm to the crankshaft or the flywheel teeth. This peace of mind is invaluable, especially when working on high-performance LS engines where precision matters.
Overall, the LS flywheel locking tool has become an essential part of my toolkit. It saves me time, reduces frustration, and protects my engine investment. If you’re serious about working on LS engines, I highly recommend getting one—you won’t regret it.
My Buying Guide on LS Flywheel Locking Tool
When I first started working on LS engines, I quickly realized how essential having the right flywheel locking tool is. It makes engine maintenance and repairs so much easier and safer. If you’re like me and want to find the best LS flywheel locking tool, here’s what I’ve learned through experience that can help you choose the right one.
Why I Needed an LS Flywheel Locking Tool
The LS engine’s flywheel can spin freely, making tasks like removing the crankshaft pulley bolt or performing timing adjustments tricky and frustrating. Using a locking tool keeps the flywheel firmly in place, preventing damage and giving me the control I need during repairs.
Compatibility with Your LS Engine Model
Not all locking tools fit every LS engine variant. Before I bought mine, I checked whether the tool was compatible with my specific LS series—whether it was a Gen III, Gen IV, or others. Make sure the product description clearly states which LS engines it supports to avoid returns or wasted money.
Build Quality and Materials Matter
I found that tools made from durable materials like hardened steel or high-grade aluminum lasted much longer and handled the torque without bending or breaking. Cheaper tools might save money upfront but often fail quickly, so investing in a sturdy one pays off in the long run.
Ease of Use and Design Features
Some locking tools come with ergonomic handles, adjustable fittings, or multiple mounting options, making them easier to use. I preferred tools that allowed quick installation and removal, so I could work faster without struggling to keep the tool in place.
Price vs. Value
I balanced cost with quality. While some premium locking tools are pricier, they saved me time and frustration. Avoid the cheapest options unless you’re sure of their reliability. Sometimes spending a bit more upfront prevents costly mistakes later.
Customer Reviews and Brand Reputation
Before purchasing, I always read reviews from other LS engine enthusiasts. Their feedback helped me identify which brands consistently deliver reliable locking tools. Brands known for automotive specialty tools tend to have better support and durability.
Additional Tips from My Experience
- Always double-check the tool’s fit before starting your job.
- Use the locking tool on a clean flywheel surface for better grip.
- Store the tool properly after use to maintain its condition.
- Consider getting a set if you work on multiple LS engine types.
By keeping these points in mind, I found the perfect LS flywheel locking tool that made my engine work smoother and safer. Hopefully, my guide helps you pick the right tool for your needs!
Author Profile
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Ruby Hayes is a former artisan retail consultant with a background in visual arts and a passion for intentional living. Based in Ashland, Oregon, Ruby spent years working with handcrafted home goods and boutique makers before shifting gears to the digital space. Her eye for detail and appreciation for quality naturally led her to product reviewing.
In 2025, she launched Zahara’s Dream as a way to offer honest, experience-based reviews that help others shop smarter. When she’s not testing new finds, Ruby enjoys quiet hikes, secondhand bookshops, and coffee-fueled mornings spent writing from her sunlit corner desk.
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