{"product_id":"chelhead-ls-flywheel-locking-tool-for-gm-rwd-ls-lt-engines-black-oxide-1-4-steel-includes-bolts","title":"Chelhead LS Flywheel Locking Tool for GM RWD LS\/LT Engines — Black Oxide 1\/4\" Steel, Includes Bolts","description":"\u003cstrong\u003eThe Chelhead LS Flywheel Locking Tool is a heavy‑duty 1\/4-inch steel tool that locks the flywheel or flexplate ring gear on GM rear‑wheel‑drive LS and compatible LT engines so you can safely hold the crankshaft during high‑torque service.\u003c\/strong\u003e\n\n\u003cp\u003eWhen working on GM V8 engines derived from the LS\/LT family, preventing crankshaft rotation is essential for removing harmonic balancer bolts, servicing the flywheel or flexplate, and performing timing or front‑end repairs. The Chelhead tool bolts into the starter mounting location and engages the ring gear teeth, offering a simple, reliable solution without the need for specialty crank-holding fixtures. Built from cold‑rolled steel with a black oxide finish and shipped with two grade 8.8 bolts, it’s designed for workshop durability and repeat use on compatible rear‑wheel‑drive setups.\u003c\/p\u003e\n\n\u003ch3\u003eWhich engines and model years will this locking tool work with?\u003c\/h3\u003e\n\u003cp\u003eThis tool is intended for many rear‑wheel‑drive GM LS and LT engine variants produced roughly between 1997 and 2019. It fits common LS swaps and factory applications that share the starter mounting geometry and ring‑gear access.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCompatible: LS1, LS2, LS3, LS6, LSX; 4.8L, 5.3L, 5.7L, 6.0L, 6.2L, 7.0L\u003c\/li\u003e\n  \u003cli\u003eAlso fits select Gen V: LT1, LT4, L83, L86\u003c\/li\u003e\n  \u003cli\u003eCovers many 1997–2019 RWD engine installations and swaps\u003c\/li\u003e\n  \u003cli\u003eNot compatible with front‑wheel‑drive (FWD) engines or incompatible bellhousings\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow is the tool installed and used in the workshop?\u003c\/h3\u003e\n\u003cp\u003eInstallation is straightforward: remove the starter, align the tool over the starter bolt locations, and secure it with the supplied grade 8.8 bolts. The locking arm engages the ring gear teeth to hold the crankshaft while you apply high torque to the harmonic balancer or flywheel fasteners.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eStarter removal required for access to mounting holes\u003c\/li\u003e\n  \u003cli\u003eSecures with two included grade 8.8 bolts of correct length\u003c\/li\u003e\n  \u003cli\u003eEngages ring gear teeth—no extra crank holder needed\u003c\/li\u003e\n  \u003cli\u003eWorks on engines in chassis or mounted on stands (RWD only)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat are the construction and durability features of this flywheel holder?\u003c\/h3\u003e\n\u003cp\u003eChelhead built the tool from 1\/4‑inch cold‑rolled steel and secured critical joints with TIG welds for strength. A black oxide finish reduces visible corrosion and protects the surface against workshop exposure and handling wear.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e1\/4‑inch cold‑rolled steel for stiffness and longevity\u003c\/li\u003e\n  \u003cli\u003eTIG welded joints to endure repeated high‑torque use\u003c\/li\u003e\n  \u003cli\u003eBlack oxide coating resists surface rust and scuffs\u003c\/li\u003e\n  \u003cli\u003ePackaged with two proper‑length bolts for immediate use\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill this tool work on engines already installed in my vehicle or on an engine stand?\u003c\/h3\u003e\n\u003cp\u003eYes — the design clears common rear‑wheel‑drive bellhousings and is intended to be usable whether the engine is in the vehicle or mounted on a stand. Always confirm starter location and engine layout before ordering to ensure fitment.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDesigned for RWD installations in engine bay or on stand\u003c\/li\u003e\n  \u003cli\u003eCheck starter bolt pattern and bellhousing clearance first\u003c\/li\u003e\n  \u003cli\u003eIncludes the two mounting bolts needed for installation\u003c\/li\u003e\n  \u003cli\u003eNot suitable for FWD engines or incompatible mounting geometries\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: The Chelhead LS Flywheel Locking Tool is aimed at professional mechanics, home engine builders, and performance enthusiasts who service GM LS‑family or select Gen V LT V8s in rear‑wheel‑drive vehicles or engine stands. If you routinely remove harmonic balancers, remove or install flywheels\/flexplates, or perform torque‑sensitive fastener work on these engines, this compact, steel locking tool offers a practical way to prevent crankshaft rotation while keeping your workflow efficient and secure.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Is this locking tool compatible with FWD GM engines?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: No. It is designed for rear‑wheel‑drive LS and select LT engines and does not fit front‑wheel‑drive mounting layouts.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Are the mounting bolts included with the tool?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. The package includes two proper‑length grade 8.8 bolts for starter‑location installation.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Chelhead","offers":[{"title":"Default Title","offer_id":55161772835159,"sku":"B087JB34VK","price":30.62,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1050\/1524\/7191\/files\/chelhead-flywheel-locker-front-view.jpg?v=1790332268","url":"https:\/\/britishgarage.co.uk\/products\/chelhead-ls-flywheel-locking-tool-for-gm-rwd-ls-lt-engines-black-oxide-1-4-steel-includes-bolts","provider":"British Garage","version":"1.0","type":"link"}