i did not know about different regulators but the motors and gearboxes of every one i ever dealt with interchange . There may be R and L gear cases but parts the same ? The motors come it two lengths , the longer one had more torque and was maybe used originally in the rear regulators as they are harder to move , as they get near the top . But have seen that all mixed up too , possibly due to servicing them . A problem area , both the motor getting water in it by running along shaft and the nylon gear in the gear box splitting . Seal the water thrower plastic thing to shaft with weatherstrip cement . especially important if motor end faces up . i drill an .060 hole in center of back cover of those too just in case , let’s you get one drop of oil ( no more!) in too . if cap fills with water , common —-it destroys the bearing and metal spring that holds it . Do you know it is motor , and what is wrong with it ? Seldom windings —often shaft seized to bearings or support setup destroyed at brush end . If not — sometimes can fix it by freeing up . Sometimes you cannot , bearing ball pulls out solid to shaft . circuit breaker contact thing there can rust up too . i do not know how late in years that motor design with two wires black and green was used in mopars . . but have encountered ? later design where whole motor has a rubber like waterproofing . Maybe used and improved well up into 60’s ? Or was a service part ? anyone know how late into 60’s it was used? Later one is probably a lot better . John Sent from my iPhone not by choice
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