{"product_id":"yg-gm12t-373-high-performance-ring-pinion-gear-set-3-73-ratio","title":"YG GM12T-373 High Performance Ring \u0026 Pinion Gear Set 3.73 Ratio","description":"\u003cp\u003eIn this review the Yukon Gear \u0026amp; Axle YG GM12T-373 ring and pinion set earns attention from owners of GM 12-bolt truck rears who need a durable, quiet gear change without a lot of fuss. The bottom line: this is a vehicle-specific, high performance 3.73 ratio set built to OEM fitment that balances strength and low noise, making it a practical upgrade for increased power or larger tires. The reviewer found the set easy to set up with the advertised surface finishes reducing run-in friction and heat under load.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eVehicle Specific Fit:\u003c\/strong\u003e Designed for GM 8.875 in 12-bolt truck rear housings so installation follows OEM fitment and reduces fitment surprises.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e3.73 Ratio:\u003c\/strong\u003e The 3.73 ratio offers a useful balance of acceleration and drivability for trucks with added horsepower or larger tires.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuiet Running Design:\u003c\/strong\u003e Yukon uses modern gear tooth surface finishes and manufacturing methods to keep gear whine low under normal driving and towing loads.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh Grade Steel:\u003c\/strong\u003e Both ring and pinion are made from premium steel and manufactured to exacting specs for durability in high torque conditions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEasy to Set Up:\u003c\/strong\u003e The parts are engineered with OEM spec fitment and clear machining that simplifies backlash and pattern setup during installation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOne-Year Warranty:\u003c\/strong\u003e Standard one-year warranty coverage gives a basic level of protection against manufacturing defects.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThis ring and pinion set is aimed squarely at owners of GM 12-bolt rear axle trucks with the 8.875 in carrier who want a reliable 3.73 final drive. It is a good choice for daily-driven trucks that have gained horsepower or larger tire sizes and need a gear change that keeps engine RPMs and drivability in check.\u003c\/p\u003e\n\u003cp\u003eIt is less suited for someone needing a custom-cut, racing-only ratio or those who require an extensively warrantied lifetime program without considering the optional Yukon Y.E.S. plans. Also, installers seeking a universal fit for multiple axle types should look elsewhere for broader compatibility.\u003c\/p\u003e\n\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eVehicle-specific design simplifies installation and reduces fitment headaches for GM 12-bolt truck rears.\u003c\/li\u003e\n\u003cli\u003eQuiet running thanks to modern gear tooth surface finish that reduces friction and heat.\u003c\/li\u003e\n\u003cli\u003eDurable construction using high grade steel suitable for higher torque and larger tires.\u003c\/li\u003e\n\u003cli\u003eComes with a one-year warranty and access to Yukon service plans for added peace of mind.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eWarranty is one year by default; lifetime coverage requires enrollment in optional Yukon programs.\u003c\/li\u003e\n\u003cli\u003eNot a universal fit - limited to GM 8.875 in 12-bolt truck rear applications only.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eYukon Gear \u0026amp; Axle\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eYG GM12T-373\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFit Type\u003c\/td\u003e\n\u003ctd\u003eVehicle Specific (GM 8.875 in 12-bolt truck rear)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGear Ratio\u003c\/td\u003e\n\u003ctd\u003e3.73\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRing \u0026amp; Pinion Set Type\u003c\/td\u003e\n\u003ctd\u003eHigh Performance, OEM spec fitment\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003eOne-year manufacturer warranty (Yukon Y.E.S. plans available)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThe Yukon YG GM12T-373 3.73 ring and pinion is a sensible, high quality upgrade for GM 12-bolt truck owners who want a durable, quiet gear set that fits OEM specs. It represents good value for people adding horsepower or larger tires because of its durable steel construction, modern tooth finish, and straightforward fitment, though those wanting lifetime coverage should explore Yukon's extended plans.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWill this fit my GM 12-bolt truck?\u003c\/strong\u003e\u003cbr\u003eYes, this set is made for GM 8.875 in 12-bolt truck rear carrier applications and is vehicle specific for that axle size.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat ratio is this set?\u003c\/strong\u003e\u003cbr\u003eThis ring and pinion set is a 3.73 final drive ratio, suitable for balancing acceleration and highway drivability.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes it come with a warranty?\u003c\/strong\u003e\u003cbr\u003eYukon includes a one-year manufacturer warranty; additional coverage is available through Yukon Y.E.S. plans.\u003c\/p\u003e","brand":"Yukon Gear \u0026 Axle","offers":[{"title":"Default Title","offer_id":46485148827867,"sku":"B003LRP6MG","price":399.89,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/61DhWcu9hKL._AC_SL1500.jpg?v=1739298789","url":"https:\/\/gearmusthave.com\/products\/yg-gm12t-373-high-performance-ring-pinion-gear-set-3-73-ratio","provider":"GearMustHave","version":"1.0","type":"link"}