Traxxas 6789 Pro-Built Complete Rear Differential

The Pro-BUILT 4X4 rear differential comes professionally assembled for easy drop-in replacement. The sealed assembly comes pre-filled with 30k-weight silicone oil with steel gears to withstand Velineon^® brushless horsepower. Pro-BUILT differentials are direct replacements for VXL 4X4 models. Includes 13-tooth pinion gear and 37-tooth ring gear. Pro-BUILT differentials are not directly compatible with Brushed Titan powered 4X4 models.