This is a Stock Replacement 44 Tooth Bevel Gear for some Ofna vehicles. This part is also referred to as a ring gear. FEATURES: Steel construction INCLUDES: One 44 tooth bevel gear REQUIRES: Nothing. This is a direct replacement part. SPECS: Outer diameter: 45mm (1.77") Inner diameter: 31mm (1.22") Thickness: 5.5mm (0.22") cmc 10/29/02 ir/kh