Looks like the part # is MB618321 and covers trucks from 87 to 2001. I've looked on AliExpress and the ball park price is about $40USD. Some vendors are going high ball for price sans shipping, some are going lowball and marking up on the shipping. The vendors are all using the same images which indicates they are all the same part. They all have the nylon spring retainer/bush on the load actuator arm.