This DODGE Ram 2002 - 2009 Up/Down Power Seat Adjustment Motor (Rear Motor) is for truck models 1500, 2500, 3500, 4500 and 5500. It comes with a steel worm drive gear as pictured. 
 
DOD2 Replaces Factory Part Number: ​
Gen II B     Vertical     8-82992
Gen II B     Vertical     5609820
Gen II B     Vertical     5719230
Gen II B     Vertical     L0110344AA01
 
Install Instructions are included with your purchase