If you are using stock chassis railsI am 100% certain the capri Roll bar is at fault, depending on how low the car is, you can get away with a stock ARB, mk1 or 2 escort, or if the car is, but below a cetain height you need a Twincam ARBwhich is slightly longer to push the wheels back in the arches, or fit compression struts.
Rally design used to sell Twink ARBs but they are not listed on their site at the moment, may be worth a call, someone else to try could be Peter Lloyd rallying, check with them before you buy, just to make sure,
Ian
