You can buy the bushings. Dorman makes them & a few companies offer the kit (2 different kinds of bushings needed). I don't know if the linkage arms are reproduced but they are attached to the motor with a short steel link arm & a nut, & the linkage rods are attached to the wiper pivots via a press-on bushing. I replaced them all on an 87 Dodge truck I had & believe the bushings are the same kind. There is 1 type for link rods to pivots & 1 type for attaching to wiper motor link arm to the link rods. I know I have the link rods from a 74 Duster. I will have to look for the motor link arm. I'm pretty sure I saved it.