{"product_id":"quickchange-differential-10-universal-fitment-speedtek-motorsport-quick-change-diff","title":"Speed Tek Auto Racing 1,000HP+ 10-inch Quick Change Rear Differential","description":"\u003ch2 data-end=\"126\" data-start=\"89\"\u003eSpeedTekAutoRacing 10-inch Quick Change Differential\u003c\/h2\u003e\n\u003cp data-end=\"195\" data-start=\"127\"\u003e\u003cstrong data-end=\"170\" data-start=\"127\"\u003eBuilt for Power. Crafted for Precision.\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003chr data-end=\"200\" data-start=\"197\"\u003e\n\u003ch3 data-end=\"210\" data-start=\"202\"\u003eProduct Overview\u003c\/h3\u003e\n\u003cp data-end=\"323\" data-start=\"212\"\u003e\u003cstrong data-end=\"229\" data-start=\"212\"\u003eCapable of handling over 1000 HP.\u003c\/strong\u003e\u003cbr data-end=\"232\" data-start=\"229\"\u003eSpeedtek's Quick Change Differential is engineered to deliver overwhelming durability and performance even under the most grueling conditions, utilizing top-quality materials and precision machining processes.\u003c\/p\u003e\n\u003cp data-end=\"382\" data-start=\"325\"\u003eA product designed for those seeking a reliable drivetrain for extreme motorsport competition, such as Time Attack, drifting, or drag racing.\u003cbr\u003e\u003cbr\u003e\u003cspan\u003eSince the mounting points are identical to the Winters and DMI BullDog 10-inch Quick Change, it is compatible with existing rear members currently using Winters units.\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003chr data-end=\"387\" data-start=\"384\"\u003e\n\u003ch2 data-end=\"396\" data-start=\"389\"\u003eKey Features\u003c\/h2\u003e\n\u003ch3 data-end=\"432\" data-start=\"398\"\u003e■ A356-T6 Gravity Cast High-Strength Housing\u003c\/h3\u003e\n\u003cp data-end=\"474\" data-start=\"433\"\u003eDesigned for high rigidity and strength.\u003cbr data-end=\"451\" data-start=\"448\"\u003ePrecision-machined finish ensures high case rigidity and exceptional durability.\u003c\/p\u003e\n\u003chr data-end=\"479\" data-start=\"476\"\u003e\n\u003ch3 data-end=\"512\" data-start=\"481\"\u003e■ 6082-T6 Forged Billet Aluminum Side Bell Housing\u003c\/h3\u003e\n\u003cp data-end=\"543\" data-start=\"513\"\u003eForged design boasting high rigidity, suppressing housing and case deflection even under high loads and high torque.\u003c\/p\u003e\n\u003chr data-end=\"548\" data-start=\"545\"\u003e\n\u003ch3 data-end=\"589\" data-start=\"550\"\u003e■ 4140 Chromoly Steel 1350 Series Front Yoke Flange\u003c\/h3\u003e\n\u003cp data-end=\"620\" data-start=\"590\"\u003eEnsures drivetrain reliability while supporting high-output engines.\u003c\/p\u003e\n\u003chr data-end=\"625\" data-start=\"622\"\u003e\n\u003ch3 data-end=\"656\" data-start=\"627\"\u003e■ 300M Billet Steel Main Shaft\u003c\/h3\u003e\n\u003cp data-end=\"690\" data-start=\"657\"\u003eBalanced and precision-machined for superior torsional rigidity, strength, and rotational stability.\u003c\/p\u003e\n\u003chr data-end=\"695\" data-start=\"692\"\u003e\n\u003ch3 data-end=\"736\" data-start=\"697\"\u003e■ 4340 Forged Billet Steel 35-Spline Side Flanges\u003c\/h3\u003e\n\u003cp data-end=\"825\" data-start=\"737\"\u003eCompatible with Porsche 930 standard (108CV) or Nissan 6x1 bolt pattern (GT-R \/ Z33).\u003cbr data-end=\"778\" data-start=\"775\"\u003e・The Nissan 6x1 bolt pattern allows the use of stock driveshafts from vehicles like the GT-R and Z33.\u003c\/p\u003e\n\u003chr data-end=\"830\" data-start=\"827\"\u003e\n\u003ch3 data-end=\"862\" data-start=\"832\"\u003e■ 7075-T6 Forged Aluminum Center Spool\u003c\/h3\u003e\n\u003cp data-end=\"896\" data-start=\"863\"\u003e35-spline forged spool configuration, the key to traction.\u003cbr data-end=\"882\" data-start=\"879\"\u003eBuilt to withstand the most demanding operating environments.\u003c\/p\u003e\n\u003chr data-end=\"901\" data-start=\"898\"\u003e\n\u003ch3 data-end=\"936\" data-start=\"903\"\u003e■ 8620H Steel Crown \u0026amp; Pinion Gear Set\u003c\/h3\u003e\n\u003cp data-end=\"967\" data-start=\"937\"\u003ePrecision-cut for a balance of quiet operation, wear resistance, and smooth performance.\u003cbr\u003e※ Gear sets from Winters \/ DMI BullDog differentials are also compatible with this Quick Change unit.\u003c\/p\u003e\n\u003chr data-end=\"972\" data-start=\"969\"\u003e\n\u003ch3 data-end=\"1000\" data-start=\"974\"\u003e■ 6061-T6 Billet Rear Differential Cover\u003c\/h3\u003e\n\u003cp\u003eIntegrated cooling fin design.\u003cbr data-end=\"1017\" data-start=\"1014\"\u003eBuilt-in oil level plug for quick and easy oil management and changes.\u003c\/p\u003e\n\u003chr data-end=\"1049\" data-start=\"1046\"\u003e\n\u003ch3 data-end=\"1082\" data-start=\"1051\"\u003e■ Wheel Speed Sensor Compatibility\u003c\/h3\u003e\n\u003cp data-end=\"1103\" data-start=\"1083\"\u003eSupports accurate wheel speed data acquisition, useful for data loggers and gear ratio selection.\u003c\/p\u003e\n\u003chr data-end=\"1108\" data-start=\"1105\"\u003e\n\u003ch3 data-end=\"1128\" data-start=\"1110\"\u003e■ Multiple Sensor Ports\u003c\/h3\u003e\n\u003cp data-end=\"1167\" data-start=\"1129\"\u003eAllows installation of temperature sensors for real-time monitoring.\u003cbr data-end=\"1146\" data-start=\"1143\"\u003eHelps maintain optimal performance and durability.\u003c\/p\u003e\n\u003chr data-end=\"1172\" data-start=\"1169\"\u003e\n\u003ch3 data-end=\"1197\" data-start=\"1174\"\u003e■ High-Quality Bearings \u0026amp; Oil Seals\u003c\/h3\u003e\n\u003cp data-end=\"1256\" data-start=\"1198\"\u003eUses top-tier bearings from brands such as Timken, NSK, and SKF.\u003cbr data-end=\"1237\" data-start=\"1234\"\u003eEnsures stable long-term use even in high-load environments.\u003c\/p\u003e\n\u003chr data-end=\"1261\" data-start=\"1258\"\u003e\n\u003ch3 data-end=\"1300\" data-start=\"1263\"\u003e■ Zinc-Plated High-Strength Grade 10.9 Metric Bolts\u003c\/h3\u003e\n\u003cp data-end=\"1337\" data-start=\"1301\"\u003eUses the highest strength mounting bolts for all critical points to ensure safety and reliability.\u003c\/p\u003e\n\u003chr data-end=\"1342\" data-start=\"1339\"\u003e\n\u003ch2 data-end=\"1357\" data-start=\"1344\"\u003eOptional Configurations\u003c\/h2\u003e\n\u003ch3 data-end=\"1395\" data-start=\"1359\"\u003e■ Lightweight 8620H Billet Steel Ratio Gears (Optional)\u003c\/h3\u003e\n\u003cp data-end=\"1467\" data-start=\"1409\"\u003e\u003cstrong data-end=\"1419\" data-start=\"1409\"\u003eAvailable Gear Ratios:\u003c\/strong\u003e\u003cbr data-end=\"1422\" data-start=\"1419\"\u003e3.1 \/ 3.3 \/ 3.5 \/ 3.7 \/ 3.9 \/ 4.1 \/ 4.3 \/ 4.6\u003c\/p\u003e\n\u003cp data-end=\"1585\" data-start=\"1529\"\u003e\u003cstrong data-end=\"1566\" data-start=\"1529\"\u003eISOTROPIC SUPER FINISHING (ISF) Available\u003c\/strong\u003e\u003cbr data-end=\"1569\" data-start=\"1566\"\u003eFor those seeking even greater performance and durability.\u003c\/p\u003e\n\u003chr data-end=\"1590\" data-start=\"1587\"\u003e\n\u003ch3 data-end=\"1613\" data-start=\"1592\"\u003e■ Skid Plate (Optional)\u003c\/h3\u003e\n\u003cp data-end=\"1640\" data-start=\"1614\"\u003eProvides enhanced protection for the underside of the differential against road debris.\u003cbr\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0259\/7502\/9815\/files\/1769833830160.jpg?v=1769833975\" alt=\"\"\u003e\u003cbr\u003e\u003cbr\u003e\u003cstrong data-start=\"705\" data-end=\"725\"\u003eWe offer a variety of final gear sets, allowing for \u003cstrong\u003egear ratio changes in just minutes\u003c\/strong\u003e.\u003cbr\u003e\u003c\/strong\u003e\u003cstrong data-start=\"705\" data-end=\"725\"\u003eThis quick change unit is also \u003ca href=\"https:\/\/fivesquareusa.com\/a\/search?q=%E3%82%AF%E3%82%A4%E3%83%83%E3%82%AF%E3%83%81%E3%82%A7%E3%83%B3%E3%82%B8+%E3%82%AE%E3%82%A2\u0026amp;page=1\" rel=\"noopener\" target=\"_blank\"\u003ecompatible with Winters gear sets\u003c\/a\u003e.\u003cbr\u003e\u003cbr\u003e\u003c\/strong\u003e\u003cspan\u003eShafutoya stocks a \u003c\/span\u003e\u003cstrong\u003e\u003ca rel=\"noopener\" href=\"https:\/\/ls6fmb3raz2gqtaw-25975029815.shopifypreview.com\/a\/search?q=winters+%E3%82%B9%E3%82%AD%E3%83%83%E3%83%89%E3%83%97%E3%83%AC%E3%83%BC%E3%83%88\u0026amp;options%5Bprefix%5D=last\" target=\"_blank\"\u003elarge selection of skid plates for quick change units\u003c\/a\u003e.\u003c\/strong\u003e\u003cspan\u003e Skid plates are an essential item for quick change differentials, as they protect the diff case from breakage or surface damage due to road contact.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cstrong data-start=\"705\" data-end=\"725\"\u003eWe also provide \u003ca href=\"https:\/\/fivesquareusa.com\/pages\/driveshaftquotation\" rel=\"noopener\" target=\"_blank\"\u003ecustom one-off driveshaft fabrication\u003c\/a\u003e for SpeedTek \/ DMI BullDog \/ Winters Quick Change units.\u003c\/strong\u003e\u003cspan\u003e Learn more here.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003eBoth of these quick change types use 1350-series differential flanges.\u003c\/span\u003e\u003cstrong\u003e We strongly recommend the use of \u003ca href=\"https:\/\/fivesquareusa.com\/products\/billet-high-strength-1350-u-joint-strap-kit\" rel=\"noopener\" target=\"_blank\"\u003eMark Williams billet U-bolt kits\u003c\/a\u003e.\u003c\/strong\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2 data-end=\"2275\" data-start=\"2260\"\u003e\n\n\u003cbr\u003e\u003cbr\u003ePre-Order \u0026amp; Delivery Information\u003c\/h2\u003e\n\u003cp data-end=\"2332\" data-start=\"2279\"\u003e\u003cstrong data-end=\"2292\" data-start=\"2279\"\u003ePre-order pricing is limited in quantity.\u003c\/strong\u003e\u003cbr data-end=\"2295\" data-start=\"2292\"\u003eThis promotional pre-order pricing ends once the initial production run of 300 units is sold out.\u003c\/p\u003e\n\u003cp data-end=\"2383\" data-start=\"2360\"\u003e\u003cstrong data-end=\"2369\" data-start=\"2360\"\u003eExpected Shipping\u003cbr\u003e\u003c\/strong\u003eSpring 2026 (Shipping dates are subject to change without notice. Please note that pre-orders cannot be canceled).\u003c\/p\u003e\n\u003cp data-end=\"2420\" data-start=\"2386\"\u003e\u003cstrong data-end=\"2399\" data-start=\"2386\"\u003eMaintenance Interval\u003cbr\u003e\u003c\/strong\u003eRecommended annually.\u003cbr\u003e\u003c\/p\u003e\n\u003cp data-end=\"2444\" data-start=\"2424\"\u003e\u003cstrong data-end=\"2433\" data-start=\"2424\"\u003eWarranty\u003cbr\u003e\u003c\/strong\u003eUnconditional 6-month warranty.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eInternational Shipping\u003c\/strong\u003e\u003cbr\u003eShipping costs are included in the product price.\u003c\/p\u003e\n\u003cp data-end=\"2477\" data-start=\"2447\"\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBefore Ordering\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e〇 Regarding Import Consumption Tax\u003cbr\u003eAt Shafutoya, we cover the import consumption tax incurred at the time of import, so there will be no additional charges beyond the total amount paid at checkout.\u003cbr\u003e\u003cbr\u003e〇\u003cspan\u003e Compatibility Verification\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eAll product databases are based on North American (USDM) vehicles. Please verify compatibility with Japanese (JDM) vehicles before ordering. (If you are unsure if a product fits your vehicle, feel free to contact us. Our support team will investigate for you.)\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eIf an order is placed without verifying compatibility, we cannot accept returns due to fitment issues.\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003ePlease note that even if products are sorted by year, make, and model using the tabs on our home page, this does not guarantee direct bolt-on compatibility with Japanese-spec models.\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eAll products have been translated into Japanese using translation software. Due to potential phrasing ambiguities, please contact us with any questions before placing your order.\u003cbr\u003e\u003cbr\u003e○ Shipping\u003cbr\u003eShipping costs are paid at the time of checkout. Estimates for shipping are automatically calculated once you enter your shipping address at checkout. For large items like body parts, there may occasionally be a significant discrepancy between the automatically calculated shipping cost and the actual cost. In such cases, we will contact you via email.\u003cbr\u003e\u003cbr\u003eAll products are generally shipped internationally from our US warehouse. Unlike domestic shipping in Japan, international shipping takes approximately 7 to 14 days, so please allow ample time for delivery. If you are in a rush, please inquire about lead times beforehand. Please note that all items are shipped via air freight; we do not use sea freight.\u003cbr\u003e\u003cbr\u003e○ Regarding Japanese Vehicle Inspection (Shaken)\u003cbr\u003eOur products are generally designed and manufactured outside of Japan. Please note that they are not compliant with Japan's \"Shaken\" vehicle inspection system, and we cannot provide strength evaluation documents or similar certificates for this purpose. Therefore, all parts are sold for \"circuit, private property, or off-road use only.\" Installation and usage are at your own risk.\u003cbr\u003e\u003cbr\u003e○ Warranty\u003cbr\u003ePlease inspect the contents immediately upon arrival. As all products are shipped internationally, there is a possibility of shipping damage to the packaging or the product itself. For damaged items, defective products, or incorrect orders, we will only accept returns, refunds, or exchanges if notified within 7 days of receipt. Please understand that for products sold through our company, we handle all warranty-related support directly. We do not provide support through other third-party companies or agencies located within Japan.\u003c\/span\u003e\u003c\/p\u003e","brand":"Speedtek Auto Racing","offers":[{"title":"ポルシェ930系 108CV (スタンダード) \/ 不要 \/ ブラック","offer_id":41978584858679,"sku":"QC10","price":17721.0,"currency_code":"QAR","in_stock":true},{"title":"ポルシェ930系 108CV (スタンダード) \/ 不要 \/ ブルー","offer_id":42059853070391,"sku":null,"price":17721.0,"currency_code":"QAR","in_stock":true},{"title":"ポルシェ930系 108CV (スタンダード) \/ 不要 \/ レッド","offer_id":42059853103159,"sku":null,"price":17721.0,"currency_code":"QAR","in_stock":true},{"title":"ポルシェ930系 108CV (スタンダード) \/ 必要 \/ ブラック","offer_id":41978584891447,"sku":"QC10-SP","price":18323.0,"currency_code":"QAR","in_stock":true},{"title":"ポルシェ930系 108CV (スタンダード) \/ 必要 \/ ブルー","offer_id":42059853135927,"sku":null,"price":18323.0,"currency_code":"QAR","in_stock":true},{"title":"ポルシェ930系 108CV (スタンダード) \/ 必要 \/ レッド","offer_id":42059853168695,"sku":null,"price":18323.0,"currency_code":"QAR","in_stock":true},{"title":"ニッサン 6穴 (GT-R \/ Z33 \/ Z34同形状) \/ 不要 \/ ブラック","offer_id":41978584924215,"sku":"QC10-NS6X1","price":17721.0,"currency_code":"QAR","in_stock":true},{"title":"ニッサン 6穴 (GT-R \/ Z33 \/ Z34同形状) \/ 不要 \/ ブルー","offer_id":42059853201463,"sku":null,"price":17721.0,"currency_code":"QAR","in_stock":true},{"title":"ニッサン 6穴 (GT-R \/ Z33 \/ Z34同形状) \/ 不要 \/ レッド","offer_id":42059853234231,"sku":null,"price":17721.0,"currency_code":"QAR","in_stock":true},{"title":"ニッサン 6穴 (GT-R \/ Z33 \/ Z34同形状) \/ 必要 \/ ブラック","offer_id":41978584956983,"sku":"QC10-NS6X1-SP","price":18323.0,"currency_code":"QAR","in_stock":true},{"title":"ニッサン 6穴 (GT-R \/ Z33 \/ Z34同形状) \/ 必要 \/ ブルー","offer_id":42059853266999,"sku":null,"price":18323.0,"currency_code":"QAR","in_stock":true},{"title":"ニッサン 6穴 (GT-R \/ Z33 \/ Z34同形状) \/ 必要 \/ レッド","offer_id":42059853299767,"sku":null,"price":18323.0,"currency_code":"QAR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0259\/7502\/9815\/files\/14_5d45721a-807e-44cb-be91-36d05f596164.jpg?v=1762451706","url":"https:\/\/fivesquareusa.com\/en-qa\/products\/quickchange-differential-10-universal-fitment-speedtek-motorsport-quick-change-diff","provider":"Shaft Shop","version":"1.0","type":"link"}