Just got a 2001 OBW with 163K. I put four KYB on my 2002 that now has a rod knock. So I plant to swap out my good parts. I put a lot of weight in back daily and would like to have stiffer rear springs. I've been looking around and only see stiff in Australia and UK. Tire rack doesn't have any. Are there some aftermarket stiffer springs available? Should I not put any spacers in there? I would not mind the extra height but I really want stiffer springs.
thanks