Generally, 86.5 is compatible with MOST of 87.
87 is compatible with 88 (color and fabric option changes were made in '88, but that's not what we're worried about)
89 is compatible with 90
90 is compatible with MOST of 91
91 is compatible with MOST of 92 and 93
For the MOST part (
) though 86.5 through 88 is fine and 89 through 93 is fine... Also, these compatibility differences vary by market some depend on other factory options.