This is a replacement Arrma 37 Tooth 3S BLX Differential Case Set. This high-quality Diff Case 37T Main Gear set provides replacement parts for your kit supplied items.
Features:
Tough composite material for durability and consistent performance under extreme operating conditions
Precision manufactured gear tooth configuration for smooth and trouble-free gear operation
High-quality diff case molding ensures a reliable diff seal
Integrated ring gear and diff case for strong construction