My '02 has 150,000 miles and also has slack but not as bad as it sounds like in yours. Do you get a grinding/whining sound when decelerating in gear? I'm not familiar with the term "CAB"...what does that stand for?
I was just in Phoenix for 7 days last week. I left and it was 105 degrees and back in Seattle now it's rainy and 60 degrees out. I miss it already. Where abouts are you located? I was really suprised how few Subarus are down there