I need to replace at least one of my rear calipers due to a leak but I am finding there are multiple reman brands, what is a good/decent selection??

 

I've had decent luck with Cardone and Centric parts. Both can be found on eBay for cheaper than most local suppliers.
I would consider ordering a used caliper from a bone yard, and rebuild it yourself. The rebuild kit isn't expensive. On my '92 SE, it's a peculiar design that has issues. The piston rotates and a ratcheting system keeps the brake adjusted. I got my car from the Seattle area, and both rear calipers were rusted and locked up. Need a really sturdy vice to hold it while freeing the piston. Not likely to have any hard parts that really need to go through a rebuild shop, just the seals. Make sure the piston surfaces are smooth. If the chrome flakes off the piston, it WILL rust again - use lots of synthetic brake grease or get a new piston.

 

2003 Maxima, manufacture date 4/02. Every auto parts store is confused as to what REAR caliper rebuild kit I need. Some have snap rings and some kits don't. Can anyone tell me if I need the rebuild kit with the snap rings or not. All I really need is the square cut piston o-ring and the dust boot. Some say PN 15162 and others say 15164.