1. The upgrade parts are made of 7075 Aluminum by CNC 3D processed, by adopting whole shaped technology, the products have the characteristic of high intensity and durability.

2. Upgraded the bearings bigger for Rear Axle Housing：

1pcs: 17mm x 6mm x 6mm instead of 13mm x 6mm x 5mm

2pcs: 15mm x 6mm x 5mm instead of 13mm x 6mm x 5mm

3. The protective cover has been hard anodized.

4. The item fits TRAXXAS UDR stock set.