Get some teflon tape and cut about 1/4" and wrap it in the grooves where the bushings go (it should be about 1.5 turns once the teflon is stretched). If the teflon goes beyon 1.5-2 turns, it's too much and the arm won't go in once the bushings are back on the arm.
Just to let you know in advance, there is no permanent fix for this problem. I haven't had to replace the tape on my JS1000 in months simply because I don't play it that much and I'm not a trem abuser either.
Jimmy
