{"product_id":"zronickly-speedometer-drive-gear-23-tooth-white-for-ford-mustang-t5-t45-3-73-4-10","title":"Zronickly Speedometer Drive Gear 23-Tooth White for Ford Mustang T5\/T45 (3.73\/4.10)","description":"\u003cp\u003eUpgrade and recalibrate your Ford Mustang's speedometer with the Zronickly 23-tooth white speedometer drive gear. Designed for manual T5\/T45 transmissions and compatible with select Mustang years and rear ratio changes, this small component can help keep gauge readings aligned with real speed as you modify your drivetrain.\u003c\/p\u003e\n\u003ch3\u003eWhy this matters for Mustang builders\u003c\/h3\u003e\n\u003cp\u003eWhen you swap rear gears or upgrade to a different ratio, speedometer accuracy can drift. This gear offers a practical, affordable way to maintain consistent readings without hunting for other parts. It’s a simple accessory that complements your index of drivetrain improvements and supports a more confident drive experience, whether daily cruising or weekend tuning.\u003c\/p\u003e\n\u003ch3\u003eKey fit and use cases\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eFitment covers 1983–1989 Mustangs with 4.10 ratios and T5\/T45 transmissions, plus 1990–1998 V8 Mustangs with T5\/T45 and ratios 3.55, 3.73, 4.10.\u003c\/li\u003e\n  \u003cli\u003e23-Tooth (White) design is targeted for manual transmissions when upgrading rear gears, with a clip included for secure wiring management.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhat this does for your build\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eRecalibrates the speedometer to reflect differential gear changes, helping readings match actual speed when gearing is adjusted.\u003c\/li\u003e\n  \u003cli\u003eOffers a cost-effective, quick replacement that typically takes only minutes to install alongside other differential work.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eHow to choose and install\u003c\/h3\u003e\n\u003cp\u003eBefore ordering, identify your transmission type (T5\/T45) and confirm your rear gear ratio. Match the tooth count to your specific setup. After gear swaps, replace the speedometer gear to recalibrate readings and ensure proper function. Always handle connections and clips with care to secure wiring.\u003c\/p\u003e\n\u003cp\u003eInstallation tips include inspecting the drive gear path for debris, confirming a clean seating surface, and following the included clip to hold wiring in place. This is an aftermarket part designed to support accurate readings and fit your Mustang configuration.\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: What vehicles is this speedometer drive gear compatible with?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Fits 1983–1989 Mustangs with 4.10 gears and T5\/T45, plus 1990–1998 V8 Mustangs with T5\/T45 and ratios 3.55, 3.73, or 4.10.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What do I receive and how is it installed?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Includes a 23-tooth white gear and clip; install after rear-gear changes and confirm your transmission type and ratio for correct calibration.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Zronickly","offers":[{"title":"Default Title","offer_id":42465397440597,"sku":"B0GDY3DTGW","price":29.74,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0632\/3270\/4597\/files\/zronickly-speedometer-drive-gear-23-tooth-white.jpg?v=1778006354","url":"https:\/\/plentytorque.co.uk\/products\/zronickly-speedometer-drive-gear-23-tooth-white-for-ford-mustang-t5-t45-3-73-4-10","provider":"PlentyTorque","version":"1.0","type":"link"}