Tremec TR-3650 transmission
The TREMEC TR-3650 is a 5-speed manual transmission for longitudinal engine automobiles. It includes a 5th gear that functions as an overdrive gear, light-weight aluminum housings, a synchromesh reverse gear, and synchromeshed helical cut forward gears.
Source: Wikipedia — Tremec TR-3650 transmission (CC BY-SA 4.0)