My 400ex has either a bent frame or a bent a-arm, which is causing a different camber on each front wheel. This could be easily resolved with adjustable upper a-arms. The front hiem joints are tapered where they connect to the spindle, if i could locate some hiems that match this taper, i could just modify the stock arms to be adjustable. Anyone have a source for these joints?

 

If it is a stock arm that is bent, good time to upgrade to aftermarket. Word case, you can get a used set of stock arms cheap and have some spares. If it is the frame, well I would look to fix that if possible.