It can be done but you have to be handy. Someone on this site did it by flipping the lever attached to the subframe and cutting and welding an arm. I'll see if I filed it somewhere.
69 Z/28 Dover White X33,ZL2,PS,M20,Std.int.04C
67 SS/RS Mt. Green 1W,2LGSR,3SL,4K,5BY,07C
70 Nova L78 Blk. Cherry,Sandalwood,M21,02B