This is the Sullivan Heavy Duty Tiger Drive for the Traxxas 2.5 engine. FEATURES: Replaces stock pull starter for fast easy probe starts from above Extreme duty bevel gear design Steel plate which attaches to the adapter plate Blue plastic gear cover German made 6mm one-way bearing YOU WILL RECEIVE: One Tiger Drive steel plate with overhead bevel gear One bevel gear with German one-way bearing One Copper gasket for back of bevel gear Four 3x12mm cap head screws Four 2.5mmx12mm cap head screws Four 3mmx7mm washers Four 3mmx5mm split washers REQUIREMENTS: SULG6086 (7/32 starter probe) COMMENTS: Assorted color cover set is available: SULG6088