Rear Arm Bolt - Lower Shocker Bolt - Mitsubishi Lancer GSR/RS 1.8 4WD Turbo CD5A This nut & bolt is used in 3 different locations on the rear of your Lancer Rear lower arm Outer Bolt, Rear shocker lower bolt & long lateral arm outer bolt. See HERE for locations used. Mitsubishi Part Numbers Bolt MB809342 MU140064 MU000390 Nut MB288463 SS to MU431503 MH004161 MU431006