Serious RC crawler enthusiasts, listen up! This metal transfer case is exactly what your 1/10 scale SCX10 chassis needs for that next-level performance. The black aluminum alloy housing isn't just for looks - it's tough as nails and built to handle the roughest terrain you can throw at it. The upgraded version now includes an extra shaft that lets you build a reversed transmission chassis, giving you way more flexibility in your build options. It helps keep your driveshaft perfectly centered and as low as possible in the chassis for that optimal low center of gravity performance. Inside, you've got full ball bearings and all-metal internal gears that provide incredible strength and durability when you need it most. With a 1:1.2 gear ratio and 5mm shaft diameter, this transfer case delivers smooth, reliable power transfer exactly when you need it. Weighing just 36g, it's lightweight but doesn't sacrifice any strength. Whether you're building a new crawler from scratch or upgrading your current rig, this transfer case will take your RC adventures to the next level. The precision manufacturing means everything fits perfectly and works smoothly right out of the package. Your crawler will handle rocks, trails, and obstacles like a pro with this upgrade installed!