I happen to have just taken off a whole MM rear brake assy. Only 1200 miles on kit and still looks great. This includes rebuilt calipers and ears for parking brake, rotors, caliper bracket,pads. Also have stock diameter 1.5ish inch lowering springs, blue in color, checked weight myself and the fronts are 115# and rears are 160#. Have the front housings that are shortened for the 3099 mr2? inserts. the lower perch has been positioned so half of the shorter strut is for lowering and the other half increases the bump travel to 2 plus inches. Too much to list. You may call me at 928-978-0499. Ive upgraded to a higher track level if mods.