{"product_id":"tkr7221","title":"Tekno RC 1\/10 ET410 Differential Ring Gear, 40T – Replacement Diff Gear for Use with TKR7222 Pinion","description":"\u003cdiv\u003e\n\u003ch3\u003eOverview\u003c\/h3\u003e\n\u003cp\u003eThis Tekno RC differential ring gear has 40 teeth and is made for the ET410 1\/10 4WD electric truggy. It is designed to run with the TKR7222 10T diff pinion.\u003c\/p\u003e\n\u003cp\u003eThe ring and pinion transfer power through the front and rear differentials. Worn or chipped teeth cause noise and lost drive, so replacing the ring gear restores smooth, quiet power delivery.\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eGenuine Tekno RC replacement part\u003c\/li\u003e\n\u003cli\u003e40-tooth differential ring gear\u003c\/li\u003e\n\u003cli\u003eDesigned for the ET410\u003c\/li\u003e\n\u003cli\u003eMatched to the TKR7222 10T pinion\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003ePerformance Benefits\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eRestores smooth, quiet diff operation\u003c\/li\u003e\n\u003cli\u003eReliable power transfer to the wheels\u003c\/li\u003e\n\u003cli\u003eReplaces worn or damaged gear teeth\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eUsage Notes\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eUse with TKR7222 diff pinion (sold separately)\u003c\/li\u003e\n\u003cli\u003eReplacing ring and pinion together is recommended\u003c\/li\u003e\n\u003cli\u003eCheck gear mesh and lubricate per your manual\u003c\/li\u003e\n\u003cli\u003eInspect diff bearings while the diff is apart\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical Specs\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eBrand: Tekno RC\u003c\/li\u003e\n\u003cli\u003eItem No.: TKR7221\u003c\/li\u003e\n\u003cli\u003eType: Differential ring gear\u003c\/li\u003e\n\u003cli\u003eTeeth: 40T\u003c\/li\u003e\n\u003cli\u003eMating pinion: TKR7222 (10T)\u003c\/li\u003e\n\u003cli\u003eVehicle: ET410\u003c\/li\u003e\n\u003cli\u003eScale: 1\/10\u003c\/li\u003e\n\u003cli\u003eCountry of Origin: Taiwan\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhat's Included\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e(1) Tekno RC 40T differential ring gear as packaged by Tekno RC\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFitment\u003c\/h3\u003e\n\u003cp data-fitment-audit=\"true\"\u003e\u003cstrong\u003eCompatible RC vehicles:\u003c\/strong\u003e Tekno RC ET410 1\/10 4WD electric truggy (use with TKR7222).\u003c\/p\u003e\n\u003ch3\u003eSummary\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e40T diff ring gear for the ET410\u003c\/li\u003e\n\u003cli\u003ePairs with TKR7222 10T pinion\u003c\/li\u003e\n\u003cli\u003eRestores smooth, reliable drive\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Tekno RC","offers":[{"title":"Default Title","offer_id":67921787519282,"sku":"TKR7221","price":14.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0577\/9980\/2927\/files\/tkr7221.jpg?v=1791326364","url":"https:\/\/rchopupparts.com\/products\/tkr7221","provider":"RC Hop Up Parts","version":"1.0","type":"link"}