This is a drop-in spool style outdrive that replaces the stock Axial outdrive with higher quality materials and a stronger design.
LIMITED EDITION LIGHTENED WITH 6 SCREW HOLES!
Compatible with Axial AX10 and SCX10 transmission housing
Not compatible with Wraith transmission housing
Compatible with stock and aftermarket 5mm bore driveshafts
High quality domestic 4340 Chromoly MADE IN THE USA at Holmes Hobbies!
Spool design reduces screw breakage caused by overdrive/underdrive stress
30 grams 
One year warranty.