{"product_id":"bmw-rear-differential-input-flange-34t-37t-81mm","title":"BMW Rear Differential Input Flange 34T \/ 37T 81mm – Fix Clunk \u0026 Play","description":"\u003c!-- split --\u003e\n\u003cstyle\u003e\n  .rd-wrap {\n    max-width: 100%;\n    margin: 0 auto;\n    font-family: Arial, sans-serif;\n    color: #111;\n    line-height: 1.6;\n  }\n\n  .rd-wrap h2,\n  .rd-wrap h3 {\n    margin-top: 0;\n  }\n\n  .rd-lead {\n    margin-bottom: 20px;\n  }\n\n  .rd-note {\n    background: #f7f7f7;\n    border-left: 4px solid #d40000;\n    padding: 12px 14px;\n    margin: 16px 0 24px;\n  }\n\n  .rd-box {\n    border: 1px solid #ddd;\n    padding: 14px;\n    margin: 18px 0 24px;\n    background: #fcfcfc;\n  }\n\n  .rd-accordion {\n    margin-top: 24px;\n    border-top: 1px solid #dcdcdc;\n  }\n\n  .rd-accordion details {\n    border-bottom: 1px solid #dcdcdc;\n    padding: 0;\n  }\n\n  .rd-accordion summary {\n    list-style: none;\n    cursor: pointer;\n    font-size: 18px;\n    font-weight: 700;\n    padding: 16px 40px 16px 0;\n    position: relative;\n  }\n\n  .rd-accordion summary::-webkit-details-marker {\n    display: none;\n  }\n\n  .rd-accordion summary::after {\n    content: \"+\";\n    position: absolute;\n    right: 0;\n    top: 50%;\n    transform: translateY(-50%);\n    font-size: 28px;\n    font-weight: 400;\n    line-height: 1;\n  }\n\n  .rd-accordion details[open] summary::after {\n    content: \"−\";\n  }\n\n  .rd-content {\n    padding: 0 0 18px 0;\n  }\n\n  .rd-content ul {\n    margin: 10px 0 10px 18px;\n    padding: 0;\n  }\n\n  .rd-content li {\n    margin-bottom: 6px;\n  }\n\n  .rd-columns {\n    columns: 2;\n    column-gap: 30px;\n  }\n\n  @media (max-width: 768px) {\n    .rd-columns {\n      columns: 1;\n    }\n\n    .rd-accordion summary {\n      font-size: 17px;\n    }\n  }\n\u003c\/style\u003e\n\u003cdiv class=\"rd-wrap\"\u003e\n\u003cdiv class=\"rd-lead\"\u003e\n\u003ch2\u003eBMW Rear Differential Input Flange – 34T or 37T – 81 mm\u003c\/h2\u003e\n\u003cp\u003eRear differential input flange for selected BMW rear differential applications. This flange connects the prop shaft to the rear differential and is available in \u003cstrong\u003etwo internal spline variants\u003c\/strong\u003e: \u003cstrong\u003e34 teeth \/ 81 mm\u003c\/strong\u003e and \u003cstrong\u003e37 teeth \/ 81 mm\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eDesigned for repair of worn spline engagement, driveline play, vibration, backlash, clunking on load change, or damaged rear differential input flange interfaces.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"rd-note\"\u003e\n\u003cstrong\u003eImportant:\u003c\/strong\u003e These are \u003cstrong\u003erear differential flanges\u003c\/strong\u003e, not transfer case flanges. This product has \u003cstrong\u003e2 variants\u003c\/strong\u003e: \u003cstrong\u003e34T \/ 81 mm\u003c\/strong\u003e and \u003cstrong\u003e37T \/ 81 mm\u003c\/strong\u003e. Please verify your original flange by \u003cstrong\u003espline count.\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"rd-box\"\u003e\n\u003ch3\u003eAvailable Variants\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003e34 Teeth \/ 81 mm\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e37 Teeth \/ 81 mm\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eAlthough both variants look very similar externally, they are \u003cstrong\u003enot interchangeable\u003c\/strong\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"rd-accordion\"\u003e\n\u003cdetails\u003e\n\u003csummary\u003eFeatures\u003c\/summary\u003e\n\u003cdiv class=\"rd-content\"\u003e\n\u003cul\u003e\n\u003cli\u003eRear differential input flange for BMW prop shaft connection\u003c\/li\u003e\n\u003cli\u003eAvailable in 34-spline and 37-spline versions\u003c\/li\u003e\n\u003cli\u003e81 mm 3-bolt triangular flange pattern\u003c\/li\u003e\n\u003cli\u003eHelps restore tight spline engagement at the rear differential input\u003c\/li\u003e\n\u003cli\u003eIdeal for worn, loose, noisy, or damaged rear diff flange assemblies\u003c\/li\u003e\n\u003cli\u003eSuitable for rebuilds, preventive service, or driveline backlash repair\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCommon Symptoms of a Worn Differential Input Flange\u003c\/summary\u003e\n\u003cdiv class=\"rd-content\"\u003e\n\u003cul\u003e\n\u003cli\u003eClunk when taking off or lifting throttle\u003c\/li\u003e\n\u003cli\u003eDriveline vibration under load\u003c\/li\u003e\n\u003cli\u003eNoticeable play between propshaft and differential input\u003c\/li\u003e\n\u003cli\u003eWorn or damaged splines on the original flange\u003c\/li\u003e\n\u003cli\u003eKnocking noise from the rear differential \/ propshaft area\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eFitment\u003c\/summary\u003e\n\u003cdiv class=\"rd-content\"\u003e\n\u003cp\u003e\u003cstrong\u003eConfirmed 34T \/ 81 mm application:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eBMW 5 Series F10\u003c\/li\u003e\n\u003cli\u003eBMW 5 Series F10 LCI\u003c\/li\u003e\n\u003cli\u003eBMW 5 Series Touring F11\u003c\/li\u003e\n\u003cli\u003eBMW 5 Series Touring F11 LCI\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eKnown OE reference commonly linked to the 34T version:\u003c\/strong\u003e \u003cstrong\u003e26107633480\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBroader BMW families where 34T \/ 37T rear diff input flanges may be found and must be verified:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv class=\"rd-columns\"\u003e\n\u003cul\u003e\n\u003cli\u003e1 Series\u003c\/li\u003e\n\u003cli\u003e2 Series\u003c\/li\u003e\n\u003cli\u003e3 Series\u003c\/li\u003e\n\u003cli\u003e5 Series\u003c\/li\u003e\n\u003cli\u003e6 Series\u003c\/li\u003e\n\u003cli\u003e7 Series\u003c\/li\u003e\n\u003cli\u003eX3\u003c\/li\u003e\n\u003cli\u003eX4\u003c\/li\u003e\n\u003cli\u003eX5\u003c\/li\u003e\n\u003cli\u003eX6\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cp\u003eBMW used both \u003cstrong\u003e34-spline\u003c\/strong\u003e and \u003cstrong\u003e37-spline\u003c\/strong\u003e versions across later rear differential applications, so fitment must be verified on the actual flange or by VIN.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow to Choose the Correct Variant\u003c\/summary\u003e\n\u003cdiv class=\"rd-content\"\u003e\n\u003cul\u003e\n\u003cli\u003eSelect \u003cstrong\u003e34 Teeth \/ 81 mm\u003c\/strong\u003e if your original flange has 34 internal splines\u003c\/li\u003e\n\u003cli\u003eSelect \u003cstrong\u003e37 Teeth \/ 81 mm\u003c\/strong\u003e if your original flange has 37 internal splines\u003c\/li\u003e\n\u003cli\u003eConfirm the flange uses the \u003cstrong\u003e81 mm 3-bolt triangular prop shaft pattern\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe safest method is to remove the original flange and count the splines before ordering.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhy Replace the Flange?\u003c\/summary\u003e\n\u003cdiv class=\"rd-content\"\u003e\n\u003cp\u003eThe rear differential input flange is the critical link between the prop shaft and the rear differential pinion shaft. Over time, spline wear and driveline shock can create backlash, clunking, and vibration.\u003c\/p\u003e\n\u003cp\u003eReplacing a worn flange can restore proper driveline engagement and help prevent additional wear to the mating components.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003ePackage Includes\u003c\/summary\u003e\n\u003cdiv class=\"rd-content\"\u003e\n\u003cul\u003e\n\u003cli\u003e1 x rear differential input flange\u003c\/li\u003e\n\u003cli\u003eVariant selected by customer:\n\u003cul\u003e\n\u003cli\u003e34 Teeth \/ 81 mm\u003c\/li\u003e\n\u003cli\u003e37 Teeth \/ 81 mm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eNotes\u003c\/summary\u003e\n\u003cdiv class=\"rd-content\"\u003e\n\u003cul\u003e\n\u003cli\u003eFor selected BMW rear differential applications only\u003c\/li\u003e\n\u003cli\u003eNot all visually similar flanges are interchangeable\u003c\/li\u003e\n\u003cli\u003eProfessional installation is recommended\u003c\/li\u003e\n\u003cli\u003ePlease compare your original part with the photos and dimensions before purchase\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"RacingDiffs","offers":[{"title":"34 T \/ 81mm","offer_id":47555245113580,"sku":"RD3075","price":169.0,"currency_code":"EUR","in_stock":true},{"title":"37 T \/ 81mm","offer_id":47555245146348,"sku":"RD3076","price":169.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0361\/7652\/7495\/files\/bmw-rear-differential-input-flange-34-teeth-81mm-propshaft.jpg?v=1776866057","url":"https:\/\/racingdiffs.com\/products\/bmw-rear-differential-input-flange-34t-37t-81mm","provider":"RacingDiffs","version":"1.0","type":"link"}