There is only one answer here - there really is not any "off the shelf" adjustable upper control arms for MA70.
The available options are:
1. Cut your stock arms and weld them (requires a very very trusty welder ,some calculations ,etc). I did this on my car and have some "-3 arms" in my garage. I described the process in
this thread
2. Purchase some widely available and fairly cheap "hot rod" products. You can then make UCAs similar to my current arms (camber and castor adjustment). A good source would be
HRP . The bad news here is that these would never fit the MA70 spindle ,and my personal experience in doing ream was not fun at all...
3. Find a fabricator and get him to make you custom UCA or LCA ,there are many reasons why I would choose the custom LCA for MA70 but this is a little more in the field of advanced suspension setup
4. Do yourself a favor and do not bother with 1-3 ,get some cool wide fenders and forget about the kewl looking negative camber
---------- Post added at 12:32 AM ---------- Previous post was at 12:28 AM ----------
As someone else mentioned ,JIC discontinued the product in 2007. When I checked in the beginning of 2008 there were not any remaining JIC inventory even in Japan. That all said ,there might be a pair left at a JIC Dealer somewhere around the world ,or a used one perhaps...