I replaced my front caliper on my 1990 Montero about a year ago. The caliper is bolted to the steering knuckel with, if I remember correctly, two bolts. Once these bolts are removed, the caliper should come off freely (assuming you have disconnected the brake line).

BTW, here is a copy of the procedure from a 1991 Mitsubishi Montero manual:

FRONT BRAKE CALIPER

Removal

1) Raise and support vehicle. Remove front wheel(s). Separate rubber flex hose from hydraulic line at brake hose mount, located on strut housing. Secure end of hydraulic line to prevent spillage of brake fluid.

2) Remove hose clip from brake hose mount. Disconnect brake hose from caliper. Remove upper and lower caliper-to steering knuckle bolts. Lift caliper body upward. Remove caliper.

Installation

To install, reverse removal procedure. Tighten bolts to specification. See the TORQUE SPECIFICATIONS table. Bleed brake system.

*** Per the manual, the mounting bolts (for a 1991 Montero) s/b torqued to between 58 - 72 foot lbs.

Hope this helps!!! Good Luck!!!
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