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Black 40Cr steel main gear with circular sprocket teeth

GPM Upgraded Steel Main Gear 41T (M1.5) For CROSSRC EMO XXl 6X6 / EMO XX 4X4 / EMO XX2 4X4 / EMO XXl2 6X6

$16.90
Made of 40Cr steel and hardened black, 41T steel main gear (1.5 metric pitch)
Upgraded center drive shaft set with blue anodized tubes and black yokes

GPM Upgraded Steel & Aluminum Center CVD Drive Shaft For AXIAL SCX10 III Jeep CJ-7 / SCX10 Pro

$28.90
Center CVD Drive Shaft, 6061-T6 Aluminium and 4140 Carbon Steel,  CVD Rotary Structure,