Interesting! Looks like a common failure. Inside the housing the sheared off there are two rubber blocks holding small steel bars that ride on each side of the long arm. As they pass over the wider parts of the arm, the rubber is supposed to compress increasing the friction of the small steel bars on the arm, which provides the resistance to the door closing. However, the rubber blocks get hard after 30 years so the friction on the wide parts of the arm becomes so strong that the leverage of the door force on the housing breaks it off the mounting plate. Not only is this GEN I part not available from any Montero supplier, it is not even identified by a part number in the Mitsubishi shop manual or Gen ! parts list.
90 LWB RS: 3 L/mt, JBaker springs, bushings, swaybars. KYB shocks tweaked, 134k mi, original owner. 97 LWB SR: SOLD Sep. 2014 131,006 mi: running boards removed, BFG 31x10.5 AT/KO tires, Air locker, AirLifts, KYB shocks, Cibie fogs, 3rd owner.
There's a couple guys breaking Gen 1's on the MMUSA Exchange page. I see a need for one of those in my future. I'm guessing the 37 hanging off the door has caused wear on one of the two sleeves and it's getting thin.
89 SWB, V-6 5SPD, OME Shocks, 16.5X37's, 2"BL, SR axle, Gen2 brakes, Lincoln w/Superwinch
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