Rench
I've got the same ARB fitted and even with short adjustable drop links, i had the same issue myself. The only way I've been able to do a fix was to have the drop links cut down even more. This involved cutting the stem at the bottom of the drop link (not the threaded top end), cutting off to the bottom of the threaded end and then welding it back up 'up side down' so you have the original threaded end at the bottom of the drop link to reconnect the two parts.
I now have better clearance and only occasionally, do I get a rub. With the shape of the rollbar, you have basically to reduce the shorted drop link even further, to get the optimum clearance on the ARB. There is a thread somewhere on here where somebody else has done the same, which is what I followed.
Cheers
Gregg