This is a replacement Arrma 50 Tooth Center Differential Set. Features: Super-tough steel Crown, Planetary and Satellite Gears for long-lasting durability in all conditions Super-strong Diff Case for increased durability under extreme loads Precision manufactured screw threads for fast and easy servicing Precision manufactured Gear Teeth for consistent performance at high speeds Specially designed Diff Case Insert for increased strength and durability Metal Cross Shafts for increased efficiency of fit and long-lasting durability Includes: (1) 50T Spur Gear (1) Differential Case (1) Diff Case Insert (4) 10T Satellite Gears (2) Metal Cross Shafts (2) Planetary Gears (2) F/R Diff Outdrives (2) Diff Pin - 2.25 x 9.8mm (2) Silicone O-rings (1) Diff Gasket (4) Satellite Gear Shims (4) Metal Cross Shaft Insert (1) 43T Straight Diff Crown Gear (4) Button Head Screws M3 x 12mm (1) Set Screw M4 x 3mm AR220029
