Don't want 162 M7 skid unless you are going with a 172 track. I have the 153 KK skid on my 04 RX-1 and the 162 track fits just right. A lot of folks are putting the 151 M7 skids in the 03-05 RX-1's for the 159 or 162" tracks. Just have to make sure to get the center-to-center correct, make 1/4" rear dropdown brackets and have to put a carriage bolt in backwards in place of one of the chaincase bolts. Not to bad if you know what you are doing.
J.