FORD 2005 Ranger v.3 - Manual (Page 242)

Transmission/Transaxle code designations
You can find a transmission/transaxle code on the vehicle certification
label. The following table tells you which transmission or transaxle each
code represents.
Code Description
D Five-speed automatic (5R44E/5R55E)
J Five-speed manual (HD)
M Five-speed manual (R1)
2005 Ranger (ran)
Owners Guide (post-2002-fmt)
USA (fus)
Maintenance and Specifications
242