The brake pads can be visually inspected after removing the front wheels, utilizing a cutout in the top of the caliper to check the lining thickness of both outboard and inboard pads; if the lining is worn within 3mm of its metal backing, all brake pads should be replaced. For pickups, raise and support the front end on jackstands, remove the wheels, and the lower lock pin bolt from the caliper, then rotate the caliper upward to remove the brake pads and shims. Remove about half of the fluid from the master cylinder reservoir, use a large C-clamp to depress the caliper piston until it bottoms, install the shims and new pads, reposition the caliper, and install the lock pin bolt, torquing it to 30 ft-lbs. After installing the wheels, lower the truck, refill the master cylinder, and depress the brake pedal a few times to restore pressure, bleeding the system if required. For MPVs, the process is similar, but the lock pin bolt should be torqued to 69 ft-lbs. For the Navajo, siphon part of the brake fluid from the master cylinder reservoir to avoid overflow when pressing the caliper piston into the cylinder bore, then raise the vehicle, remove a front wheel, and use a C-clamp to move the piston into the cylinder bore while avoiding contact with the outer pad spring clip. Clean the areas around the pin tabs, tap the upper caliper pin towards the outboard side to remove it, and repeat for the lower pin. Hang the caliper out of the way without allowing it to hang by the brake hose, compress the anti-rattle clip, and remove the inner brake pad. Install the new anti-rattle clip on the inner pad, position the inner pads and clip, install the outer pad ensuring the torque buttons are seated, and install the caliper using new pins while ensuring the mounting surfaces are clean and lubricated. Pump the brake pedal several times, fill the master cylinder, bleed the brake system if necessary, install the wheel and tire assembly, torque the lug nuts to 85-115 ft-lbs, remove the jackstands, lower the vehicle, and check the brake fluid level, filling as necessary while ensuring proper brake operation.