If you have the mounting brackets from the original, you can order the rear wiper motor for a
95 Blazer for about $45. Its the same motor, same mounting surface.
That type of motor has two extra wires (red and gray) that the Chrysler motor did not. You splice the extra red wire into the existing yellow wire and leave the gray wire alone and it works perfectly with the Wrangler rear wiper switch. The spline sticks out a bit further than the original motor so I used some rubber washers to snug it up firmly against the glass, other than that you'd never be able to tell.