{"product_id":"arrma-front-rear-differential-set-straight-43t-with-7k-oil-ara310958","title":"ARRMA Front\/Rear Differential Set Straight 43T with 7K Oil ARA310958","description":"\u003cp\u003eRestore smooth, reliable drivetrain performance with the genuine ARRMA Front\/Rear Differential Set Straight 43T with 7K Oil, part number ARA310958. Designed for selected ARRMA 6S brushless vehicles, this factory-assembled differential provides a convenient replacement solution for worn or damaged front and rear drivetrain components.\u003c\/p\u003e\n\u003cp\u003eThe differential features a 43-tooth straight-cut steel main gear, tough steel internal gears and a reinforced composite housing. Metal cross shafts and inserts support durable gear operation, while included bearings allow convenient installation into a compatible differential housing.\u003c\/p\u003e\n\u003cp\u003eEach unit arrives factory-assembled and pre-filled with 7,000 cSt silicone differential oil. This eliminates the need to build the internal differential from individual components or fill it before initial installation, provided the supplied oil specification suits your vehicle's setup.\u003c\/p\u003e\n\u003cp\u003eARRMA ARA310958 is listed for selected INFRACTION 6S, LIMITLESS 6S and TYPHON 6S vehicles. Because differential gear designs vary across ARRMA models and generations, always confirm the exact part number and straight-cut gear compatibility before ordering.\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eGenuine ARRMA Replacement Part: Manufacturer part number ARA310958\u003c\/li\u003e\n\u003cli\u003eFactory-Assembled Differential: Supplied ready for installation into a compatible drivetrain\u003c\/li\u003e\n\u003cli\u003ePre-Filled with 7K Silicone Oil: Contains 7,000 cSt differential fluid\u003c\/li\u003e\n\u003cli\u003e43T Straight-Cut Steel Main Gear: Durable 43-tooth ring gear construction\u003c\/li\u003e\n\u003cli\u003eSteel Internal Differential Gears: Designed for demanding RC drivetrain operation\u003c\/li\u003e\n\u003cli\u003eReinforced Composite Differential Case: Strong housing for the internal gear assembly\u003c\/li\u003e\n\u003cli\u003eMetal Cross Shafts and Inserts: Provide support for the differential gear mechanism\u003c\/li\u003e\n\u003cli\u003eBearings Included: Supplied as part of the assembled differential\u003c\/li\u003e\n\u003cli\u003eFront or Rear Installation: Suitable for either position on confirmed compatible vehicles\u003c\/li\u003e\n\u003cli\u003eConvenient Drivetrain Servicing: Reduces the need to assemble and fill a differential from individual components\u003c\/li\u003e\n\u003cli\u003eSelected ARRMA 6S Fitment: Listed for compatible INFRACTION, LIMITLESS and TYPHON 6S models\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e43T Straight-Cut Steel Gear Construction\u003c\/h3\u003e\n\u003cp\u003eThe 43-tooth straight-cut steel main gear is designed to handle demanding drivetrain loads. Steel internal gears and metal cross shafts provide durability, while the reinforced composite case supports the assembled differential components.\u003c\/p\u003e\n\u003cp\u003eThe straight-cut gear design must be matched with the correct compatible input gear. It should not be substituted for a spiral-cut differential without confirming the corresponding drivetrain components.\u003c\/p\u003e\n\u003ch3\u003eFactory-Filled 7,000 cSt Silicone Oil\u003c\/h3\u003e\n\u003cp\u003eThe differential is pre-filled with 7K (7,000 cSt) silicone oil, providing a convenient starting point for servicing compatible vehicles. Differential oil viscosity influences how freely the internal gears operate and how torque is distributed between the wheels.\u003c\/p\u003e\n\u003cp\u003eDrivers using different terrain, tyres or performance setups may prefer an alternative oil viscosity. Always follow the vehicle manufacturer's recommended fluid specification when servicing the drivetrain.\u003c\/p\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eBrand: ARRMA\u003c\/li\u003e\n\u003cli\u003eManufacturer Part Number: ARA310958\u003c\/li\u003e\n\u003cli\u003eBarcode \/ EAN: 5052127035552\u003c\/li\u003e\n\u003cli\u003eProduct Name: Front\/Rear Differential Set Straight 43T 7K Oil\u003c\/li\u003e\n\u003cli\u003eProduct Category: RC Differential and Drivetrain Parts\u003c\/li\u003e\n\u003cli\u003eInstallation Position: Front or Rear\u003c\/li\u003e\n\u003cli\u003eMain Gear Tooth Count: 43T\u003c\/li\u003e\n\u003cli\u003eMain Gear Type: Straight-Cut\u003c\/li\u003e\n\u003cli\u003eMain Gear Material: Steel\u003c\/li\u003e\n\u003cli\u003eInternal Differential Gears: Steel\u003c\/li\u003e\n\u003cli\u003eDifferential Case Material: Reinforced Composite\u003c\/li\u003e\n\u003cli\u003eCross Shafts and Inserts: Metal\u003c\/li\u003e\n\u003cli\u003eBearings: Included\u003c\/li\u003e\n\u003cli\u003eDifferential Oil: Silicone\u003c\/li\u003e\n\u003cli\u003eFactory Oil Viscosity: 7,000 cSt (7K)\u003c\/li\u003e\n\u003cli\u003eAssembly Status: Factory-Assembled\u003c\/li\u003e\n\u003cli\u003eQuantity: 1 Differential Assembly\u003c\/li\u003e\n\u003cli\u003ePrimary Vehicle Applications: Selected ARRMA INFRACTION 6S, LIMITLESS 6S and TYPHON 6S\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eVehicle Compatibility\u003c\/h3\u003e\n\u003cp\u003eARRMA's official fitment information lists this differential for the following vehicles:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eARRMA INFRACTION 6S 4WD - ARA109001\u003c\/li\u003e\n\u003cli\u003eARRMA LIMITLESS 6S Roller - ARA109011\u003c\/li\u003e\n\u003cli\u003eARRMA TYPHON 6S BLX - ARA106046\u003c\/li\u003e\n\u003cli\u003eARRMA TYPHON 6S BLX V5 - ARA8606V5\u003c\/li\u003e\n\u003cli\u003eARRMA TYPHON 6S TLR Tuned Roller - ARA8306\u003c\/li\u003e\n\u003cli\u003eARRMA TYPHON 6S TLR Tuned RTR - ARA8406\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eAdditional older model revisions may also use this assembly, but compatibility must be verified against the exact vehicle's exploded parts diagram. Not all ARRMA 6S vehicles use the same differential design.\u003c\/p\u003e\n\u003ch3\u003eIncludes\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1 x Factory-Assembled ARRMA Front or Rear Differential\u003c\/li\u003e\n\u003cli\u003e1 x 43T Straight-Cut Steel Main Gear (Installed)\u003c\/li\u003e\n\u003cli\u003eSteel Internal Differential Gears (Installed)\u003c\/li\u003e\n\u003cli\u003eReinforced Composite Differential Case (Installed)\u003c\/li\u003e\n\u003cli\u003eMetal Cross Shafts and Inserts (Installed)\u003c\/li\u003e\n\u003cli\u003eBearings (Installed)\u003c\/li\u003e\n\u003cli\u003e7,000 cSt Silicone Differential Oil (Pre-Filled)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eRequired To Complete\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eCompatible ARRMA Vehicle and Differential Housing\u003c\/li\u003e\n\u003cli\u003eCorrect Matching Input Gear for the 43T Straight-Cut Main Gear\u003c\/li\u003e\n\u003cli\u003eExisting Compatible Drivetrain and Mounting Hardware\u003c\/li\u003e\n\u003cli\u003eSuitable RC Maintenance Tools\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is ARRMA ARA310958?\u003c\/strong\u003e It is a genuine ARRMA factory-assembled front or rear differential featuring a 43T straight-cut steel main gear and 7,000 cSt silicone oil.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs this a front or rear differential?\u003c\/strong\u003e The assembly is designed for either front or rear use on compatible ARRMA vehicles.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes the package contain two differentials?\u003c\/strong\u003e No. One assembled differential is included. Purchase two units if your vehicle requires replacement of both front and rear differentials.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs the differential already assembled?\u003c\/strong\u003e Yes. ARRMA supplies it factory-assembled.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes it come with differential oil?\u003c\/strong\u003e Yes. The differential is pre-filled with 7,000 cSt silicone oil.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat does 7K oil mean?\u003c\/strong\u003e It refers to silicone differential oil with a viscosity rating of 7,000 centistokes (cSt).\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat does 43T mean?\u003c\/strong\u003e The main differential gear has 43 teeth.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs the main gear steel?\u003c\/strong\u003e Yes. ARRMA specifies a 43T straight-cut steel main gear.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAre the internal gears metal?\u003c\/strong\u003e Yes. ARRMA describes the internal differential gears as steel.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs the differential case metal?\u003c\/strong\u003e No. The differential case is made from reinforced composite material.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAre bearings included?\u003c\/strong\u003e Yes. ARRMA confirms bearings are included with the assembly.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWill this fit the ARRMA INFRACTION 6S?\u003c\/strong\u003e ARRMA lists ARA109001 as a compatible vehicle. Other INFRACTION revisions should be checked individually.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWill it fit the ARRMA LIMITLESS?\u003c\/strong\u003e ARRMA lists the LIMITLESS ARA109011. Confirm compatibility for other LIMITLESS generations.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWill it fit the ARRMA TYPHON 6S?\u003c\/strong\u003e Yes, for the specific TYPHON 6S versions listed by ARRMA, including ARA106046 and ARA8606V5.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes it fit the TYPHON TLR Tuned?\u003c\/strong\u003e ARRMA lists both ARA8306 and ARA8406 as compatible applications.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan I use this differential in a KRATON or OUTCAST 6S?\u003c\/strong\u003e Do not assume compatibility. Confirm the exact differential and input gear part numbers in your vehicle's parts diagram before ordering.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs a straight-cut differential interchangeable with a spiral-cut differential?\u003c\/strong\u003e Not automatically. The gear geometry and mating input gear must match. Replacing one design with another may require additional drivetrain components.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan I change the factory differential oil?\u003c\/strong\u003e Yes. The differential can be serviced with a different suitable silicone oil viscosity if required for your vehicle setup.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDo I need to fill it with oil before installation?\u003c\/strong\u003e No initial filling is normally required because ARRMA supplies the unit pre-filled. Inspect the assembly before installation and follow the vehicle's service instructions.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow can I confirm fitment?\u003c\/strong\u003e Check your ARRMA model number and exploded parts diagram for ARA310958, including the matching input gear design.\u003c\/p\u003e\n\u003ch3\u003eImportant Notes\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eThis listing is for genuine ARRMA ARA310958\u003c\/li\u003e\n\u003cli\u003eIncludes one factory-assembled front or rear differential only\u003c\/li\u003e\n\u003cli\u003ePre-filled with 7,000 cSt silicone differential oil\u003c\/li\u003e\n\u003cli\u003e43T main gear uses a straight-cut tooth design\u003c\/li\u003e\n\u003cli\u003eDo not assume compatibility with spiral-cut differential input gears\u003c\/li\u003e\n\u003cli\u003eVerify the exact vehicle model and drivetrain revision before ordering\u003c\/li\u003e\n\u003cli\u003eNot a universal replacement for every ARRMA 6S vehicle\u003c\/li\u003e\n\u003cli\u003eAdditional drivetrain or mounting components may be required depending on vehicle configuration\u003c\/li\u003e\n\u003cli\u003eInspect the differential housing, input gear and bearings during servicing\u003c\/li\u003e\n\u003cli\u003eCheck gear mesh and drivetrain operation before driving\u003c\/li\u003e\n\u003cli\u003eFollow ARRMA's official instructions for installation and maintenance\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ARRMA","offers":[{"title":"Default Title","offer_id":53290490298680,"sku":"ARA310958","price":119.95,"currency_code":"AUD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0738\/2849\/9768\/files\/ARRMA_FrontRear_Differential_Set_Straight_43T_with_7K_Oil_ARA310958.png?v=1792128665","url":"https:\/\/ozrc.com.au\/products\/arrma-front-rear-differential-set-straight-43t-with-7k-oil-ara310958","provider":"OZRC","version":"1.0","type":"link"}