They will match as far as bolting in. I meant match is color. The 87 has the long and tall 3x7 or whatever speaker spots. The 88+ are more like 4x6. Arguably easier to mount in your doors, but if you didn't want to do that, the 87 can be retro'd with a later dash.

Big Truck: 00, 3.5, Endeavor, 5-Spd drive line in hand!
Little Truck: 87, 2.6T I/C, MT, LSDs, Tonneau Top
Her Truck: 03, 3.8, 20th Anniv, 65k
Daughter's: 06 Eclipse, Keeping it Mitsu!
FSMs: MitsubishiLinks.com