PART NUMBER :  HSC125 DESCRIPTION : Optional Light weight Locking Differential Hub for the HPI Blitz FEATURES: alum construction Anodized Silver in color CNC machined YOU WILL RECEIVE: One Differential Locking Hub REQUIREMENTS: Installation on vehicle. COMMENTS: Light weight Differential Spool for the HPI Blitz trucks. This part is installed in place of the differential gears. This is often called a &inchposi&inch. This part is recommended for off-road use only. description revised by: WP July 3, 2014 MANUFACTURED BY: Hot Racing