GM part number for at least '85-88 is 14009313
This is assuming you are talking about a 205.
There are a couple of different styles, I can't recall if the bolts are interchangeable or not. This is the "greasable" style bolt.
The wave washer is not listed in the GM parts manual, gmpartsdirect.com is where I check/get anything I HAVE to get form GM. That part number still shows as valid, but is almost $10 even before S&H.