truck crown pinion and wheel 38100-90477 6*39

Specification:
Item Description: Crown wheel pinion for nissan
Ratio :6*39
OE or Application :38100-90477
Material :22CrMoH and 20CrMnTiH
Production Process
Forged Semi-Products–Drill holes-Rough Grinding – Cutting Teeth by Milling machine-Rolling Splines-Heat treatment-Sand blast-Precision Grinding –Lapping Gear-Phosphorization