It's not my idea, but it's a simple one.

Since I don't have padding on my bars I used an old mountain bike tube and wrapped it around to keep the spreaders from slipping down. I mounted it up so I can still get my junk in and out of the back (no back seat). I forgot to mention the large flat washers also. I used 4 of the carage bolts, one to sqeeze the clamps to each post and another to hang the jack on (thru the holes). Your 60" ought to fit fine because my 48" just makes it (I catch the end holes). The base I also hang on one of the bolts before I thread the nut and washer down. I have a short 3/8 dia cable and bicycle type lock and I just lock the whole thing to the roll bar for those days w/o top and doors.

Hope I got it all <img src="/forums/images/graemlins/smile.gif" alt="" /> <img src="/forums/images/graemlins/cheers.gif" alt="" />

Only pic I could find, none topless.