Never heard of a semi-loaded caliper. A loaded one has the pads already installed. The advantage is it saves the mechanic time. I prefer unloaded because I do things to prepare the pads to prevent brake squeak. Very few do-it-yourselfers know any of these tricks professionals use. If I had a loaded caliper, I would just end up taking the pads out anyway. For you, the advantage of one over the other would be price.
Toyota is not known to have caliper problems so there is no need to replace them on a five year old truck unless you are having an issue.
Monday, August 22nd, 2011 AT 8:26 PM