Hot Racing Losi Mini-T 2.0 Steel Spool Differential Assembly. This is an optional differential assembly intended for the Losi Mini-T 2.0 platform. Constructed using #45 CNC machined steel this is a very strong assembly able to stand up to high power brushless systems. This is also a spool style differential locking both outdrives together for the ultimate in traction. Package includes one assembled steel spool differential assembly.