⚙️ Heavy-Duty Steel. Factory Fit. Built for 8S Abuse.
Keep your ARRMA 8S drivetrain ready for serious power with the ARRMA Internal Differential Gear Set. This genuine factory replacement kit provides the internal steel gears, cross shafts, and shims needed to rebuild one differential on compatible large-scale ARRMA 8S vehicles. ARRMA confirms the steel construction and precision-manufactured gear teeth for durability under extreme RC use.
⚡ Features:
- Genuine ARRMA replacement differential components
- Tough and durable steel gear construction
- Precision-manufactured gear teeth for smooth, consistent operation
- Metal cross shafts for increased durability
- Designed to handle high-speed, high-power 8S applications
- Complete internal gear set for one differential
- Great for differential rebuilds, repairs, or keeping as a spare
📦 Includes:
- (4) 13T Satellite Gears
- (2) Cross Shafts
- (2) 20T Planetary Gears
- (2) Shims
📏 Specifications:
Manufacturer: ARRMA
Part Number: ARA310914
Part Type: Internal Differential Gear Set
Gear Material: Steel
Satellite Gears: 13T
Planetary Gears: 20T
Quantity: Components for 1 Differential
🔧 Compatibility:
✅ ARRMA Kraton 8S BLX
✅ ARRMA Kraton 8S EXB
✅ ARRMA Outcast 8S BLX
✅ ARRMA Outcast 8S EXB
ARRMA's current official fitment list confirms Kraton and Outcast 8S applications, including RTR and EXB versions.
💡 Pro Tip:
If you're already opening the differential to replace the internal gears, inspect the diff case, gasket, bearings, outdrives, and ring gear while you're in there. ARRMA's exploded diagrams confirm ARA310914 is used within the differential assemblies on both the Kraton 8S and Outcast 8S platforms.
Confidence: HIGH — verified directly with ARRMA.
