Aluminum Outer Portal Drive Housing F/R for TRX4 Receiver but it's packed full of

but it's packed full of features

" The Estes Star Hopper is a no-glue

- One (1) spline adapters for 25 tooth (Futaba)

The hexes do not lock onto the bearings

Aluminum Outer Portal Drive Housing F/R for TRX4 Receiver but it's packed full ofFeatures: CNC machined 6061 T6 aluminum, anodized black with laser engraved lettering Stronger than stock plastic housing Adds around 11g per hub to the lowest location of the vehicle to lower its center of gravity, increase its stability, and make it an overall more capable crawler Fits either the front or rear Direct replacement for factory plastic components Specifications: Weight: 14g each (stock is around 3g each)