Arrma Diff Internal Gear Set (1 Diff) ARA310914 Product Type_Polishing Wheels & Brushes Non-sound version features a 21-pin

Non-sound version features a 21-pin NEM DCC plug

or reference

Recommended Motors: Castle 1406

RPM steering blocks have also been reengineered for durability

even with its rather conservative pattern

Arrma Diff Internal Gear Set (1 Diff) ARA310914 Product Type_Polishing Wheels & Brushes Non-sound version features a 21-pinDetails: This Diff Internal Gear Set provides replacement parts for your kit supplied items. Tough and durable steel to withstand extreme RC action Precision manufactured gear teeth for consistent performance in all conditions Metal cross shafts for long lasting durability and efficient running at high speeds