1. You can't go wrong with Courtesy Nissan - I buy from them most of
the time. Price and service are both excellent.
2. It's safe to assume your shims and brake retaining clips are worn
and rusty - it's a good idea to buy the kit - they do sell one. IIRC
it includes shims, caliper pin grease, and retaining cliips. One kit
covers both axles (rear or front).
3. If you are doing the rears, remember the piston is rotated in -
clockwise screws it in.
4. Inspect the seal around the pistons - if they are cracked or
cracking, it's time for a new caliper or a rebuild. I would leave the
caliper alone if there are no signs of failure.
5. If you are doing the rears, make sure you line up the piston grooves
so that the little metal nub on the back of the pads fits into the
groove.
6. Clean the spots on the torque member where the pad retaining clips
are placed - a wire-brush is handy.
7. Clean and re-lube the caliper pins.
8. If you do the rears, inspect the parking brake cable for
kinks/smooth operation. They have a tendency to seize/start to bind.
There are some underbody brackets that often get bent when the car is
put on a lift.
9. Don't overtighten the caliper pins - you'll shear them

10. The torque member bolts can be on tight... use some PB Blaster or
Liquid Wrench to soak them.
Cheers and Good Luck,
Nirav
96 Max GLE, 129k