Visually from a distance, headlight washers indicating the off-road package. Up close, orange sticker on the DS door jam saying to use friction modifier. The axle had a similar sticekr when new. Seeing the axle one now is barely easier than seeing a California Condor, especially where I live.

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