Transmission Identification

The code within the "TR" space denotes the type of transmission installed.

MANUAL TRANSMISSION
M -- 5 speed overdrive (MSRI/M5OD)
W -- 5 speed overdrive HD (ZF)

AUTOMATIC TRANSMISSION
V -- 4 speed overdrive (4R44E)
T -- 4 speed overdrive (A4LD/4R44E)
D -- 5 speed overdrive (5R55E)
E -- 4 speed overdrive (E4OD)
U -- 4 speed overdrive (4R70W)